Erina Bit News Today

Im brooke baldwin sitting in for erin burnett who is covering the presidential election in tehran tonight. well hear from erin a bit later in the show. but first, stopping terror. today the head of the nsa testified before congress that surveillance programs like the one leaked by edward snowden last week are crucial to our national security. >> its dozens of terrorist events that these have helped prevent. >> is the u.s. government collecting too much unnecessary data in the process? senator pr...