The 49ers and the NFL have adopted extraordinary security measures for Sunday's NFC Championship Game against the Giants. The move comes after opposing fans complained of harassment by unruly 49ers faithful last week. Undercover police will be dressed in New York garb and on the lookout for nasty fans. Giants fans will be handed a card as they enter Candlestick Park with details on how to contact police if they feel threatened. Also, more security cameras and undercover police officers will be in place to identify abusive fans.