So lets see what's going on. Our own government admits that the Russians told our own FBI about these guys 2 years ago. This wasn't some random tip by some informant but the Russian government briefing us on this guy. Our own FBI interviewed the dead brother back then. Now if they kept an eye on them and were waiting for them to actually do something before making a move on them well then they failed. If they just blew off any hint these guys being a problem well then they failed again.
One of the "friends" of the bombers had a license plate that said "Terrorista". Maybe we should take a look at them as we'll. There is a red flag.
Runners at the marathon claimed they saw the Bomb Squad at the scene prior to the bombing and they were told that they were conducting a training excercise. Believe that?