50 IV. UNITED STATES V. MOHAMUD CONCLUSION Many young people think and say alarming things that they later disavow, and we will never know if Mohamud—a young man with promise—would have carried out a mass attack absent the FBI’s involvement. But some “promising” young people—Charles Whitman, Timothy McVeigh, and James Holmes, to name a few from a tragically long list—take the next step, leading to horrific consequences. While technology makes it easier to capture the thoughts of these individuals, it also makes it easier for them to commit terrible crimes. Here, the evidence supported the jury’s verdict, and the government’s surveillance, investigation, and prosecution of Mohamud were consistent with constitutional and statutory requirements. AFFIRMED. under the Fourth Amendment. See, e.g., United States v. Mayer, 503 F.3d 740, 747 (9th Cir. 2007) (where a party alleges that a criminal investigation violated the First Amendment rights of a third party, “we have held that the Fourth Amendment provides the relevant benchmark” (emphasis in original)); United States v. Aguilar, 883 F.2d 662, 697 (9th Cir. 1989).