Earlier quoted context omitted.
Yeah, saying "I'm not a terrorist" is kind of a line I'd expect to hear to in a tv show or something. Do you tell the cop "Don't worry, I'm not a kidnapper"?
When a flight attendant tells you to not take pictures, its obviously for security/terrorism concerns. I find it truly ridiculous if we can no longer make true statements in an attempt to alleviate such fear ("I am not a terrorist"). When a cop pulls you over because there was a kidnapping a year ago, you do not end up in jail for making the claim "Don't worry, I'm not a kidnapper"
No, but you'll get a more thorough check of your car (trunk and backseat), plus a more in-depth check of your car's plates and your ID - because you just made a seemingly unrelated statement about a horrible thing (kidnapping) when the cop pulled you over for something trivial (not obeying speed rules).