Where did Gracie's talent costume come from? It came from the woman seen handing out cards in the background when they arrived at the competition.
Why is Gracie such a good fit to go undercover? As an FBI agent, she has to be in incredible shape. This allows her to believably have the figure to participate in the swimsuit rounds etc.
How exactly was Kathy Morningside, and to a lesser extent her son Frank, planning to get away with bombing the Miss United States pageant, when they did such a lousy job trying to cover up their involvement and motive? Kathy carelessly licked the envelope before sending the fraudulent "Citizen" letter threatening the pageant, she spent hours writing other hoax letters right in her office with the door unlocked, she lied to the FBI about being fired, she helped Hank switch the winner's crown for the rigged one in plain sight with numerous witnesses all around, and Frank chose the worst possible place to press the remote button that triggers the explosive mechanism in the crown if he didn't want to get spotted. Had they succeeded with their plot to blow up the next Miss United States winner, they would've been caught within minutes.
Thinking about it, there are reasons they might have gotten away with it;
Nobody would have been looking for another suspect if the true Citizen hadn't been caught by another party during the investigation.
Frank's parentage can't be that well-known if Vick had to alert the FBI to it.
Kathy could claim that she hadn't thought her being fired was relevant to the case, and she could have argued that the crown had been rigged before she switched it. Besides, when dealing with the kind of mentality who would jump from, "I'm being fired," to "Therefore I have to murder an innocent girl on national TV", these people are clearly not known for their ability to rationally and correctly plot out the consequences of their actions.
On top of the above, the ONLY reason Gracie thought to look at Kathy in the first place was because while she was undercover she'd seen some of Kathy's nastier behavior and heard from an insider that her response to being fired was a violent outburst. The Feds were completely ready to dismiss Kathy as a suspect due to her perfect record. Frankly, she would never have been caught if not for Gracie's undercover work and conviction, a well-timed comment from Victor, and Eric's willingness to come back Gracie up.
