Oh go ahead and celebrate!
C'mon SAM--they're just celebrating their freedom! You know, their freedom to gather in orderly crowds and wave flags and look like a bunch of fucking dumb asses.
And all the while remaining altogether complacent over their own plight (foreclosures, unemployment, future prospects for virtually no public education, healthcare, and whatnots) and that which they've wreaked upon others oh-so brown and far-away.