Two from the mailbag! "I live by Union Square and have been serenaded by helicopters (sounds like 3 or 4) for the past half hour or so - doesn't seem to be stopping any time soon. What the hell is going on??? I'm used to the sirens and helicopters 24/7 but usually they come and go...they're hovering right over Union Square it looks like." Asked and answered! "A sinkhole seems to be swallowing the backend of a dept of sanitation garbage truck on w17th st btw 5th and 6th. BLTFish customers are shuffling by nonchalantly, still intent on their roasted halibut." Yep, it's official, the city is falling apart.