U.S. drone attacks in Yemen have n't received as much attention as in Pakistan . Dozens of airstrikes have killed hundreds , mostly AQAP terrorists , the authors say . Comment: On April 25 , the White House approved a new policy inaugurating a more aggressive campaign of drone strikes in Yemen allowing so-called `` signature '' strikes . A Yemen expert says the strikes have n't dented AQAP 's overall strength .
U.S. drone attacks in Yemen have n't received as much attention as in Pakistan . Dozens of airstrikes have killed hundreds , mostly AQAP terrorists , the authors say . Comment: A Yemen expert says the strikes have n't dented AQAP 's overall strength .