Whether it's the Galaxy, the full national team or the Olympic team, a lot of different entities want a piece of LD.
The trouble is, he's only one person, and none of those teams are deep enough that they can easily spare him. Now, I trust the information that I got about the Galaxy refusing to let LD go - that would also indicate that the Olympic team wanted him. However, if the Galaxy gave Bradley and Nowak a choice - Olympics or WC qualifying, then the decision would be easy for Bradley and Nowak.
The U.S. team HAS to qualify for the World Cup. They'd like to medal at the Olympics. It's not the same thing and has to be prioritized accordingly.