This piece does a nice job summarizing the fact that Obama's thuggery is useless in fighting spill | Washington Examiner.
In particular I liked these two paragraphs:
And what about the decision not to waive the Jones Act, which bars foreign-flag vessels from coming to the aid of the Gulf cleanup? The Bush administration promptly waived it after Katrina in 2005. The Obama administration hasn't and claims unconvincingly that, gee, there aren't really any foreign vessels that could help.
The more plausible explanation is that this is a sop to the maritime unions, part of the union movement that gave Obama and other Democrats $400 million in the 2008 campaign cycle. It's the Chicago way: Dance with the girl that brung ya.