Passage 2[音频]The New York Police Department (NYPD) announced it will form a new unit to search social media as part of the combined efforts against criminals. This is an official 1)_____ to criminals’ growing use of some websites to plan and celebrate 2) _____ achievements.A police chief, Kevin O’Connor, is 3) _____ and NYPD unit created specially to comb social media sites like Facebook, Twitter and BlackBerry Messenger for information on planned crimes and their offenders.The efforts against criminals have linked social media to increasing incidents of robberies in the United States and the recent rioting in London. Public safety agencies are 4) _____ looking to step up their efforts in order to better protect citizens against these trends.In the London riots in particular, the police suspect the riots 5) _____ BlackBerry Messenger to coordinate and plan their riots. Police there are working with BlackBerry Messenger to identify those messages that are 6) _____ burning and robbing London stores.BlackBerry Messenger and other smartphone messaging services make it hard for the police to 7) ______ criminal activity, especially if they aren’t as 8) ______ the technology as the offenders are. The NYPD unit intends to educate officers about such technology to 9) _____ this defect.For social media providers and smartphone makers, the criminals’ preference for their products is putting them in the sticky position of determining how to assist police efforts without 10) _____ lawful customers’ privacy.