US nuclear missile damaged in accident Maintenance errors by three airmen damaged a nuclear-armed missile in its silo in 2014, the US Air Force says.It says the incident happened on 17 May that year, but caused ** injuries and did **t pose any risk to public safety.The Minuteman III intercontinental ballistic missile was ******* from the silo which was operated by the 90th missile Wing in remote area of **rth-eastern Colorado.The air force gave ** further details, saying the report was classified.