The “intelligence” agencies missed -
1. The Tet offensive.
2. The fall of the Berlin Wall.
3. 9-11
4. When people got fed up with marxism and bought rope.
And the Boston Marathon bombing... and every other large event. But they ARE catching disturbed young men hanging out on the internet - men easy to goad into saying something they shouldn't say and would never do. But State bad actors? Nope they don't get any of those folks.
Here's a hint 'intelligence' - thousands of Chinese men of military age are crossing into the US via the Southern border AND their fellow Chinese are buying land within five miles of our top Military bases. Might want to take a look at that you stupid traitors.