NRA Chief Executive Wayne LaPierre has told a news conference that lives could have been saved at Sandy Hook Elementary School if security at the school had been armed.
He also told reporters: "The only thing that can stop a bad guy with a gun, is a good guy with a gun."
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Rescue workers are at the site Sunday morning trying to cut open mangled coaches.
Despite chilly temperatures it will be a mostly dry day, and milder than yesterday.
The Sunday Times alleges a missile malfunctioned after launch during a routine test of the UK's nuclear deterrent last year.