Opponents of a proposed lower Manhattan mosque and community center speak in hushed tones about the sanctity of the "shadow of Ground Zero." Tell that to the patrons of the Pussycat Lounge, a strip club where a photo of a nearly naked woman marks its location just two blocks from where the World Trade Center stood. Or the Thunder Lingerie and peep show next door, where the marquee sports an American flag above a window display of sex toys and something called a "power pump." Many come to the scene of the worst terrorist attack on American soil to pay tribute to pain and unspeakable tragedy. They're welcomed by solemn memorials and a visitors center amid the noise of reconstruction. If they're so inclined, they can also buy porn, play the ponies and take care of all manner of personal business within steps of the former World Trade Center.