NRA executive vice president Wayne LaPierre has told a news conference that "now is the time to speak about protecting American children.
Speaking for the first time since the Sandy Hook school shootings, he told reporters federal gun prosecutions have decreased and the media promotes violence through video games, adding that the media also demonises lawful gun owners.
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Former Conservative leader Lord Hague has called for "a major chance in policy" cannabis.
Further cost cuts are now on the horizon for the department store chain.
The Police Service of Northern Ireland said he was detained in the Coalisland area of Co Tyrone on Tuesday morning.