seven with a classic over the san antonio spurs. captioning funded by cbs this is the cbs morning news for wednesday, june 19th, 2013. good morning. good to be with you. i m anne-marie green. well, president obama is in berlin this morning where he will call for a major reduction of american and russian nuclear weapons. the president s one-day stop in germany includes a meeting with the german president. mr. obama will make his case for reducing the number of nuclear weapons during his speech at berlin s brandenburg gate. he ll call for a one third reduction in the u.s. and russian nuclear arsenals. as the president targets nuclear proliferation, the focus in washington concerns the program. the direct of nsa returns to capitol hill today. general keith alexander says he ll provide lawmakers with details about the dozens of terrorist plots national security officials say were disrupted because of widespread phone and internet surveillance programs. yesterday alexander a
captioning sponsored by cbs captioning sponsored by cbs this is the cbs evening news with scott pelley. pelley: good evening. keith alexander s job usually keeps him out of the public eye, but he stepped into the spotlight today for a second time in a week to defend the top-secret operations that he runs. alexander heads the national security agency where edward snowden once worked as a contract employee until he exposed two of n.s.a. s surveillance operations. one of those collects the phone records of millions of americans the other program monitors internet traffic. well, today before the house intelligence committee, alexander answered critics saying that these programs save lives. homeland security correspondent bob orr begins our coverage. reporter: general keith alexander claimed the n.s.a. surveillance programs recently revealed by leaks have helped stop more than 50 potential attacks since 9/11. these programs are critical to the intelligence community s abil