Knife Attack at Russian School Leaves at Least 12 Wounded Two masked teenagers broke into a fourth-grade classroom in Perm, the latest in a series of assaults that have prompted a debate about school security. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Global Health: Measles Outbreak Now at 880 Cases, With Fastest Growth Still in New YorkPalestinian Business Leaders Reject Trump’s Economic OvertureYour Tuesday BriefingNurse Hitchhikes to Help Girl Whose Photo Drew Attention to Hunger in VenezuelaAustrian Chancellor Calls for Top Minister’s Ouster, Deepening Government ChaosTornadoes, Joe Biden, Huawei: Your Monday Evening Briefing