Plot doesn't always mean planning to carry out the terrorist mission. I'm sure he plotted to execute the mission and not get caught. but he got caught because of missing plate (thanks RedFox), didn't he?
1. White Supremacists' plot failed to assassinate Obama (allegedly) because of erratic driving.
2. Tim McVeigh was caught couple hours later because of missing plate
3. Feb. 2008 - 2 men on terrorist watch list was caught at Arizona border because of suspicious traffic violations
So my comment is specifically toward to terrorists being caught over simple traffic violation. Hence - "All plots always ended with a simple traffic violation." get it? It's best if you just sssssshhhh
However - I must point out that ya'all not seeing this news about Obama assassination in big news stations yet because it's unconfirmed. They do not know yet if it's really connected to Obama assassination or not. We don't wanna cause some riot and fear like MLK all over again, don't we?
