Quotation from

http://www.25thaviation.org/johnkerry/id27.htm

"22 This opens up another interesting aspect of the much touted “horrors” of the 1972 Christmas bombing of Hanoi. In response to this bombing, the North Vietnamese and their Soviet “advisors” fired 1,242 Soviet made SAMs at the American war planes. Twenty six American planes were hit by SAMs. The other 1,216 SAMs, with warheads in tact, fell back to earth in the Hanoi – Hai Phong area. Has anyone ever heard of, seen or read a report that describes the damage and deaths caused by these self-inflicted missile strikes?"

What about missile self-destruction system used in missiles fired in Vietnam?