Obama and the Democrats really don't want the US to be able to defend itself. They hate the missile defense system. It appears that Obama is following the Clinton example of polling to determine what action to take as he "leads," so he may not kill the airborne laser system, despite the wishes of his supporters on the left. Here is a discussion from American Thinker about a UK report that Obama will cancel the program.

http://www.americanthinker.com/blog/2008/12/obama_lets_leave_advanced_weap.html