CNN.com–Full Story SAN FRANCISCO, California (AP) — Parts from the atomic bomb dropped over Hiroshima were auctioned for $167,500 Tuesday — but the government says the sale is a breach of national security and wants to block it.

Pending the outcome of litigation by the Justice Department, Butterfields Auctioneers Inc. agreed to hold onto the arming mechanisms from the bomb dropped from the Enola Gay. The B-29 bomber dropped the atomic bomb over Hiroshima, Japan, on August 6, 1945, killing roughly 140,000 people. 
 …The Justice Department said the internal configuration of the thumb-sized plugs — one of which was used to activate the real bomb — is classified. 
 …The government is seeking a court order prohibiting a San Diego physicist from taking possession of the plugs… 
 …Prosecutors also said the plugs are the government’s property, not that of the Enola Gay crew member who put them up for auction.