The primaries coming up in the next two weeks - Indiana and North Carolina - are likely to give Obama back a goodly portion of those delegates. By the time all the primaries have been held, after June 3, there is no doubt that Obama will lead by more than 100 elected delegates, and likely 150. From there, it will be an easy route to the nomination.
The Democratic superdelegates aren't about to risk a massive and sanguinary civil war by taking the nomination away from the candidate who won more elected delegates. If they ever tried it, we'd see a repeat of the demonstrations that smashed the 1968 Chicago convention and ruined Hubert Humphrey's chances of victory."