The public demanded -- and had a right under our democratic system to expect -- from the U.S. government a vigorous and meaningful response.

CENTERFORSECURITYPOLICY: "US Relations With China"

Whether the U.S. system of ground-based interceptors are the right response quickly became a matter of debate Friday.

WSJ: U.S. to Boost Missile Defenses in Response to North Korea

"As the public have got to understand better what corporate tax avoidance is, there is a clear sense of outrage that is going well beyond a small group of protesters - it's something that the public feels is really not right with the current system, " he says.

BBC: Google, Amazon, Starbucks: The rise of 'tax shaming'

Mr Postol says that "as an American supporter of Israel's right to self-defence", he does not feel comfortable seeing the US spend money on a weapon system "that hardly works".

BBC: Israel's Iron Dome: Doubts over success rate