November 6, 2011 6:20 pm Mayor Nutter Answers Critics of Police Use of ‘Stop and Frisk' Philadelphia Mayor Michael Nutter says ‘stop and frisk’ is a constitutional tool used to address the problem of illegal handguns and cut crime in the city. US & World Videos 0:35 Fans of ‘The Office' got to see some of the stars at Fan Expo Philadelphia on Saturday 2:32 Rainy, chilly weather didn't stop many from enjoying festivals throughout Philadelphia 0:29 Driver found safe after carjacking in Delaware 2:23 Teen killed in quadruple shooting in North Philadelphia on Saturday evening 0:39 Teen shot near church in West Philly, two in custody