>>> coming up, deborah potter on the controversial life of the late dorothy day. she was a convert to catholicism who fed the poor, defied authority, opposed all war, and is now being considered for sainthood. >>> and this weekend of the grammy awards, kim lawton looks at the new mainstream success for contemporary christian music. ♪ >>> welcome. i'm bob abernethy. it's good to have you with us. there was more attention this week to the ethical debate weaponized drones in the war on terror. the discussion came amid a senate intelligence committee confirmation hearing for john brennan, nominated to be the next head of the cia. brennan helpelead the obama adminisation's largely secret drone program. a leaked memo revealed the justice department's view that it is legal for the government to kill u.s. citizens overseas if it believes they pose an "imminent threat," even if there is no evidence of an immediate specific attack. some ethicists say that amounts to illegal targeted killings. >> they are not the best strategy, they are not ethically right, and they are not