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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Almost 20,000 hand-made shrouded figures have been laid out to mark the 100th anniversary of the Battle of the Somme.
Jeremy Corbyn has come under fire in a fresh row over Israel after he appeared to compare the Israeli state to jihadi terrorists.
Thousands of soldiers who died in the Battle of the Somme will be remembered today at commemoration events across the UK and France.