''Clear and Present Danger'' is the fourth Literature/JackRyan novel written by Creator/TomClancy. It is the sixth chronological book, published in 1989 and taking place in 1988.

In the midst of an election year, the President decides that he must show the voters that he is taking a hard line against drugs. His new National Security Advisor, Vice Admiral James Cutter, takes charge and enlists the CIA in order to conduct offensive operations against the Medellín Cartel. At the same time, Jack Ryan finds himself assuming the position of DDI due to his mentor James Greer succumbing to pancreatic cancer. Unfortunately, things soon spiral out of control and Ryan must find a way to stop things before too much damage is done to the government.

The novel is notable for introducing {{Badass}} John Clark as a regularly recurring character, after the popularity he enjoyed in ''Literature/CardinalOfTheKremlin'', as well as Domingo "Ding" Chavez, who would later become the other half of Clark's Badass Duo.

The [[Film/ClearAndPresentDanger 1994 film adaptation]] starred Creator/HarrisonFord as Ryan and Willem Dafoe as John Clark.

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!!This novel contains examples of:

* ActionSurvivor: Ryan, as in past instances, has the action come to him rather than him searching for the action.
* ArtisticLicense[=/=]AnachronismStew: In the real world, 1988 featured UsefulNotes/GeorgeHWBush running against Michael Dukakis, since it was impossible for UsefulNotes/RonaldReagan, who got elected in 1980, to run for a third term. However, for the purposes of the story, the President in the last two novels was elected to his first term in 1984, theoretically making him either Harold Stassen or Walter Mondale. This gets more confusing in later novels where Clancy treats the Reagan and Bush presidencies as happening as normal.
* BeleagueredAssistant: Cortez to Escobedo, and subsequently to the rest of the Cartel. It's specifically noted by Ritter that whatever brains the Cartel don't have, they hire. Cortez laments several times throughout the novel that he could easily replace the men he works for and eventually does make moves to do as such.
* TheBigGuy: Julio Vega, who would later become a recurring character, is introduced in this novel, and given his nickname, ''[[BearsAreBadNews Oso]]''. A staple of this and later novels is that he's so tough that a hundred pushups a day doesn't generate even a drop of sweat for him.
* BoringYetPractical: Invoked by Director Jacobs, who argues that, instead of covert special operations and bombing, good, honest police work can do much more to sink the Cartel. He makes a pretty good case, seeing as how Operation TARPON makes by far the biggest hole in the Cartel's power.
* TheCartel: Are the primary adversaries.
* TheCavalry: After everything goes to hell, Ryan and Clark help organize a rescue for the troops left behind on the ground, with the Pave Low, their MC-130 support, Larson's King Beech, and the ''Panache'' all playing big roles.
* ChronicBackstabbingDisorder: Once Cortez discovers the various United States operations against the Cartel, he uses them in order to eliminate various Cartel leaders to solidify his position.
* CoolBoat: USCGC ''Panache''.
* CorruptCorporateExecutive: The owner of the ''Empire Builder'' has laundered money for the Cartel on a massive scale, and his elimination was due to the Cartel discovering that he had been skimming off the top. The records the FBI discover in his home lead to ''Operation TARPON''.
* CorruptCop: Ernie Braden, a detective in the Mobile police force, was hired by the Cartel to search for and steal evidence prior to the hit being put on the Corrupt Corporate Executive above. His failure to discover the records subsequently result in the Cartel putting a hit on him.
* DerelictGraveyard: "Bronco" Winters speculates that the [[http://www.amarcexperience.com/AMARCDescription.asp Boneyard]] in Arizona is where the captured druggie [=DC-7B=] will eventually be dumped, given that one more old aircraft in storage there won't be particularly noteworthy.
* DontSneakUpOnMeLikeThat: This exact line is said by Clark when the pilot Larson walks up behind him without warning first. Actually [[IdiotBall incredibly stupid of Larson]], since Clark just ''killed'' four heavily armed mercenaries.
* TheDragon: Felix Cortez is this to Escobedo, and is mainly portrayed as a DragonInChief since much of the Cartel's side of the story is told from his perspective.
* DrugsAreBad: The justification for the plot. Subverted when the methods the government uses to attack the drug trade are shown as [[WhatTheHellHero clearly worse]] than the trade itself.
* ElitesAreMoreGlamorous: Averted. John Clark recruits his soldiers from regular U.S. Army light infantry units and then gives them additional training in guerrilla warfare. The reason he doesn't recruit from Special Forces is that the Special Forces community is small enough that people would notice the missing soldiers and start asking questions.
* EnemyCivilWar: Part of John Clark's ''RECIPROCITY'' operation after FBI Director Emil Jacobs is killed by the Medellin Cartel.
* ExactWords: Ryan and Murray promise Cortez that he won't be prosecuted. True to Ryan's word, he isn't prosecuted. [[spoiler:He's handed back to his former agency in Cuba, where his fate is most likely to be far less pleasant than what it could be under the US criminal justice system.]]
* EvenEvilHasStandards
** Cortez has the mindset of a professional intelligence officer, so while he mostly has a lot of PragmaticVillainy moments, he does show genuine disgust with the methods used by the Cartel to intimidate their rivals (even paraphrasing RapeIsASpecialKindOfEvil at one point).
** Exploited by the Mobile Police Department, who use a combination of this and ThePowerOfLove to convince two armed robbers to murder the pirates who kick off the novel.
* EveryBulletIsATracer: Averted.
** When tracers are used (particularly in the miniguns on the Pave Low helicopters), it's specifically mentioned that only one out of X bullets is a tracer round, for the purposes of assisting with aim[[labelnote:*]]miniguns aren't equipped with sights, as they're for area denial and not precision shooting[[/labelnote]]. Given [[GatlingGood minigun]] [[MoreDakka rate of fire]], it's also mentioned that it looks like a laser beam at full "rock and roll".
** This also goes for the ''SHOWBOAT'' teams, where it's specifically noted that only the last three rounds in each magazine for the riflemen are tracers, in order to tell them that it's time to reload.
* FakeKillScare: The Coasties get a drug-runner to talk by pretending to hang his collaborator from the lanyard with a hood over his head. A pad of gauze soaked in ether, hidden inside the hood, knocks him out.
* FalseFlagOperation: Part of Clark's plan to destroy the Cartel from within is to make them think that their own members are bombing each other.
* FieryCoverup: When Clark discovers the remains of Team ''Banner'''s men after they run into a Cartel hunting party, he burns the bodies in order to cover up American involvement in the operation. He later confronts Ritter about this, saying that he's never burned the body of a friendly before, and didn't like being forced to.
* GeneralFailure: Vice Admiral Cutter, by sheer incompetence, manages to escalate the US operations in Columbia to illegal levels. To make matters worse, Cortez discovers the U.S. involvement and then blackmails Cutter into assisting him in his power grab, which involves betraying the ''SHOWBOAT'' teams and leaving them to die.
* GetOutOfJailFreeCard: Largely averted, since, as mentioned by new FBI Director Bill Shaw, none of the order-followers throughout the whole operation actually broke the law since they believed that they were following legitimate, legal orders from above.
* GreyAndGrayMorality: Outside of Ryan and a few other major characters, everyone involved gets morally compromised in some way. And while Cortez is evil, he's occasionally shown in a positive light for his competency and skill.
* HoneyTrap: Cortez is said to be a master of this, and demonstrates as such, in manipulating Moira Wolfe into giving him sensitive FBI information.
* HomeFieldAdvantage: In one case, some Cartel workers manage to escape from Team ''Knife'' due to knowing the terrain better and using it to flee.
* IdiotBall
** TheCartel's decision to assassinate the US Ambassador, the Director of the FBI, and the head of the DEA displays a tenacious grip on the IdiotBall. Cortez is the only one that realizes this.
** This is reciprocated by the United States when they decide to start using the ''SHOWBOAT'' teams to hit Cartel processing cites, which essentially is an act of war against Columbia since they're now technically using armed soldiers to kill Columbian citizens inside of their borders.
* InnocentBystander:
** After the Cartel eliminate Emil Jacobs, Cutter's response is to approve a surgical bombing of a Cartel meeting. Of course, the bomb isn't as surgical as he deluded himself to believe, resulting in the deaths of various Cartel heads' family members and servants. This has a direct impact on the election rhetoric, putting even more pressure on the President.
** When the ''SHOWBOAT'' teams commence operations hitting Cartel processing sites, it's implied that many of the peasants who do the dirty work have no other choice to feed their families.
** Ernie Braden's wife happens to catch a stray round when Cartel hitmen murder him in his front yard, and she later dies in the hospital.
* ItsAllMyFault: Moira Wolfe, on discovering that she was used by Cortez, and that the information she gave directly resulted in Emil Jacobs's death, attempts suicide because of this.
* ItsPersonal:
** Jeff "Bronco" Winters, who pilots the F-15 that takes part in Operation ''EAGLE EYE'', accepted the job because his mother was killed by a druggie when he was a child.
** When the Cartel discover the implications of Operation ''TARPON'', and that Emil Jacobs would be flying to Columbia to meet with their Attorney General, they make the rash decision to murder him. Of course, this results in compromising Moira Wolfe, the FBI source who gave Cortez the information.
** In response to the above, the President gives Ritter a "hunting license with no bag limit," which results in the killing of various Cartel heads, as well as the ''SHOWBOAT'' teams attacking Cartel drug processing sites.
** In one scene, Ritter explains to Cutter that John Clark is more than happy to go after the Cartel because Clark's former girlfriend was murdered by a drug-dealing pimp (referring to events that would later be depicted in the John Clark OriginStory novel, ''Literature/WithoutRemorse'').
** More generally, the CIA deliberately select for this trope, picking for their operation military men they feel will be angry about drugs - the Gunnery Sergeant in Command of the Recon Marines who receive the intercepted drug flights, for instance, served in Vietnam and saw a platoon wiped out by the Vietcong because some of them were doing drugs.
* TheKillerBecomesTheKilled: The Alabama police use some wildly illegal and creative means to get two black felons to murder Ramon and Jesus, the pirates, after their lawyer gets the death penalty taken off the table.
* LastStand: The Battle of Ninja Hill, in which fifteen US Army soldiers take on 200 Cartel gunmen. While the ''SHOWBOAT'' teams manage to kill close to half of the gunmen and wound most of the rest, only five of them end up surviving, with one of them captured and later killed.
* LeaveBehindAPistol: [[spoiler:Admiral Cutter]] is given the "choice" by Clark of facing trial for flagrant violations of U.S. and international law. He chooses the "easy" way out by stepping in front of a bus. Later novels strongly imply that Clark did this entirely on his own initiative.
* LiteraryAllusionTitle: [[http://en.wikipedia.org/wiki/Clear_and_present_danger the "Clear and present danger"]] clause in law. {{Title Drop}}ped. Interestingly, it is related to the First Amendment freedom of speech provision and has little, if any, relevance to the plot.
* NoCelebritiesWereHarmed: Ernesto Escobado is a thinly-veiled stand-in for real life Colombian drug lord Pablo Escobar.
* OddFriendship: Alan Trent, who was introduced in ''Literature/CardinalOfTheKremlin'', is first seen in the company of Sam Fellows, a Mormon from Arizona, at the end of the novel [[spoiler:when they force the President to throw the election to Fowler]].
* RoaringRampageOfRevenge: The United States's response to the Cartel for murdering Director Jacobs.
* RightManInTheWrongPlace: Ryan is only able to do what he can to shut down the operations because of his position as DDI.
* ShootOutTheLock: Larson shoots out the lock at an airplane strip where Colonel Johns's chopper lands to refuel before heading out to ''Panache''. Though it ''is'' slightly {{justified|Trope}} in that he uses five rounds to do so and specifically aims to separate the lock mechanism from the door.
* SmugSnake: Ernesto Escobedo's default attitude towards America and Americans. This eventually becomes his downfall.
* SomeoneToRememberHimBy: In later novels, it's noted that at the time, [[spoiler:Carol Zimmer]] was pregnant with her husband's eighth child, and was planning to surprise him with it the next time he came home.
* SwissBankAccount: The Cartel launder their money through an intricate network set up by an Alabama businessman, which was almost untraceable. However, once it's cracked by Operation ''TARPON'', it inflicts a net loss on the Cartel on the order of half a billion dollars. Keep in mind, these are 1988 dollars, so the result is equivalent to ''over'' a billion dollars today.
* TakeThat: Clancy wrote the novel after the Iran-Contra scandal broke, and wrapped in elements of the UsefulNotes/VietnamWar, to highlight what he saw as political operators making mistakes with covert operations for obscure, unjustified, and sometimes illegal goals.
* TheStarscream: Cortez, after the Cartel make the decision to murder Jacobs in response to ''TARPON'', decides to subvert their leadership with the aim of eventually taking over.
* TitleDrop: The drug trade is identified via secret executive order as a "clear and present danger" to national security.
* TrainingFromHell: The ''SHOWBOAT'' teams train for their mission in the Colorado mountains, where the oxygen level is very low, in order to prepare themselves for operations in the Columbian mountains. They don't try playing the DrillSergeantNasty version, though, specifically because the troops all have enough combat experience neither to need such treatment nor to stand for it.
* WeHaveReserves: Invoked by Cortez when he sends hundreds of Cartel gunmen to eliminate the ''SHOWBOAT'' teams based on the information provided by Cutter. In addition to killing the U.S. soldiers, he wants to reduce the Cartel's available manpower so that he can make his power grab.
* YouAreInCommandNow: Bill Shaw ends up becoming the new FBI Director upon Emil Jacobs's death.
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