is homeland security useless? regarding the mystery odor in new york city today- the talking heads are "confident" that the odor is harmless- but don't know what it is or where it is coming from. uh huh. they are "confident" at this time that it is not terrorism- but how can they know that if they don't know what it is or where it is coming from? '... support and defend the Constitution of the United States against all enemies, foreign and domestic...'