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:Contributing Opinion Writer: Mexico Awaits Trump’s Next MoveOp-Ed Contributor: Duterte’s Descent into AuthoritarianismPainting the Arab World, From AfarGermany Bans ‘True Religion’ Islamist Group and Raids MosquesA Chinese Farmer’s Execution Shows the Pitfalls of Rapid UrbanizationSinosphere: China Wants to Resurrect Word ‘Comrade.’ But Its Meaning Has Changed.