Bombings in the US are way down. Most terrorist incidents in the last 10 years are shootings. The last big bombing was the Boston Marathon, in 2013, and that was two brothers working alone, so intel wouldn't have helped. The last organized plot was in 2009, aimed at the NYC subway and some UK targets. That was allegedly foiled by intel into Al Qaeda communications.
Since 9/11, terrorism in the US [1] has been much less of a problem than routine mass shootings.[2]
[1] https://en.wikipedia.org/wiki/Terrorism_in_the_United_States... [2] http://www.shootingtracker.com