ALI MOORE, PRESENTER: After the deadly shooting in Tucson, Arizona earlier this year which claimed six lives and injured a congresswoman, gun control advocates were convinced they'd have some weight behind their argument for tighter gun laws in the United States, and they say the US president is finally speaking up. But there appears to be little tangible change to the gun culture in America. If anything, one of the most formidable political lobby groups, the National... (GunPolicy.org)