Wouldn't the US have security to defend against these agents with bombs?
I think infiltrating few agents with bombs is much easier than bypassing THAAD with primitive faulty missiles Kim have.
U.S. border is very transparent for illegal migrants, so why secret agents can't come in?!
Not so easy to destroy the building. Required engineering calculations to know exactly where to lay the explosives. In addition now the buildings of a lot of cameras. Besides the destroyed house will not stop Trump. You can sacrifice 1000 lives, but save many millions. Which option will you choose?.