Leader of tribe that includes Mohammed Khalil Hamash family dies in blast . Gunmen kill three other tribal heads who advocated national reconciliation . U.S.-led coalition troops kill two suspected militants in northern Iraq . Iraq diplomat : U.S. should n't be base for attacks on other states .
Leader of tribe that includes Saddam Hussein 's family dies in blast . Gunmen kill two other tribal heads who advocated national reconciliation . U.S.-led coalition troops kill three suspected militants in northern Iraq . U.S. diplomat : Iraq should n't be base for attacks on other states .