Declassified CIA documents disclose several major accidents...

Declassified CIA documents disclose several major accidents involving Soviet submarines, including a 1981 Baltic Sea incident in which some crewmen on a crippled sub died of radiation poisoning, CBS News reported. Citing censored CIA reports it has obtained, CBS said, “Since the mid-1960s, six Soviet subs have been reported lost at sea, taking some 500 crewmen to their deaths.” It also noted that “as many as 30 crewmen died on the icebreaker Lenin in the mid-60s after what a CIA source described as a meltdown of her nuclear reactor.”