2.) A 200 billion USD blunder (again, see: Iraq)
3.) The instigaton of nationwide anarchy (except of couse in Kabul) and the method by which a puppet government is put into "power" and left to deal with the mess brought on by its "liberators" for decades to come (see: Afghanistan).
4.) Something used by politicians to garner more votes from the fringe right (see: George W. Bush, GOP, NRA, Halliburton).