At the Asia Times, Yong Kwon analyzes the latest drumbeats:
The pervasiveness of the tendency to forward coercive measures is evident in the recent report published by the American Enterprise Institute in Washington. Senior research associate Michael Mazza argues that the US should pursue the short-term goal of wiping out North Korea’s power projection capacities and the long term goal of demolishing the regime. 
This contention has always been popular among Americans who believe that the United States should actively utilize its massive military and economic might to neutralize international threats.
The simple logic behind the coercive approach is attractive, but dangerous if not completely irresponsible.
Atrios summed up the endless war approach to foreign policy quite well.