U.S. ignored Arab radicalization:
‘We knew what was happening, but the Americans preferred to find excuses.’
http://www.haaretz.com/news/diplomacy-defense/israeli-foreign-ministry-officials-say-u-s-ignored-arab-radicalization-1.465210
Excuse # 2: Excuse #1:
They were busy doing other things.
Excuse #2 was busy being a self-aggrandizing public drunk:
Excuse #1 is lazy, cold, narcissistic, incompetent louse who continues to be busy trying not to be busy: