self-interest rather than pro-israeli support drive US

[Diane Monaco]

...the primary aim of U.S. policy in the Middle East is U.S. dominance over 
the region and its oil resources, through support for regimes that play our 
game and through our ever-increasing military presence...

...That reality is clear: The central principle of every U.S. 
administration since the end of World War II has been that the resources of 
the region do not truly belong to the people of the region, but instead 
exist for the benefit of Americans

http://www.commondreams.org/views02/0513-07.htm