MISSING ANTIQUITIES Loss Estimates Are Cut on Iraqi Artifacts, but Questions Remain By ALAN RIDING BAGHDAD, Iraq, April 30 — Even though many irreplaceable antiquities were looted from the National Museum of Iraq during the chaotic fall of Baghdad last month, museum officials and American investigators now say the losses seem to be less severe than originally thought. Col. Matthew F. Bogdanos, a Marine reservist who is investigating the looting and is stationed at the museum, said museum officials had given him a list of 29 artifacts that were definitely missing. But since then, 4 items — ivory objects from...