In December 2013, a US drone strike hit a wedding party in remote part of Yemen's central province of al-Baydah, killing 12 civilians. Gregory Johnsen, writer-at-large for BuzzFeed News leads Radiolab down a rabbit hole of United States' military condolences. Producer Matt Kielty talks to lawyers, generals, and a grieving father to try to understand how we say "sorry" with cash. From French farmers in WWI to Iraqi children injured by unexploded bombs, we wonder - can money ever heal the heart?