sunday roundup week go future president obama authorize air strike iraq humanitarian airdrop food water thousand yazidis besiege islamic state fighter white house emphasize military action limited scope allow united states drag fight war iraq say president co USA   USA  formally withdraw force iraq war continuation iraq war rename war unintended consequences week air strike warrant serve sobering rebuke kind thinking lead iraq place voice head ill conceive charge center like paul wolfowitz t USA ay claim america win war iraq g USA  forget tell iraq