President Barack Obama faces a full agenda on his return to work today. One of the top items: reforming the National Security Agency. While on vacation, he considered the recommendations of a task force he appointed to improve operations at the NSA. The president is soon expected to announce possible changes to controversial spying programs — some of which have been in place since 9/11. While many privacy advocates have praised the task force recommendations, some say they don’t go far enough. And others worry that tinkering too much with our nation’s surveillance programs could pave the way for another attack. Diane and her guests discuss a rethinking of national security.