It suggests that USA had to invade something, just for the sake of invasion. After 9/11 the public found it therapeutic to have an evil enemy they could go to

It suggests that USA had to invade something, just for the sake of invasion. After 9/11 the public found it therapeutic to have an evil enemy they could go to war against. Powerful people in the Bush administration wanted an excuse to invade Iraq again, and the public's psychological need made it very easy for them to sell the war. North Korea never would have worked because they weren't the right race and religion for the U.S. public to conflate them with the 9/11 attackers. Going to war with North Korea wouldn't have served the psychological drive to "strike back."