Tom Asciutto walked past the patches of snow and ice on the Asbury Park boardwalk yesterday, waiting until the last possible second on the hard beach to shed his insulated coveralls and black New York Jets cap. After all, the wind was transforming the chilly air into something nearly unbearable even with all his clothes on. Around him, more than 125 other people wearing only bathing suits and goosebumps tried to psyche themselves up for what was to come. "Go!" someone yelled, and the crowd ran screaming en masse toward the water 50 feet in front of them. They plunged...