College campuses can be political hotbeds. And that has some members of Congress thinking they should get involved. Some Republicans are pushing a measure through the House of Representatives meant to ensure that students hear "dissenting viewpoints" in class and are protected from retaliation because of their politics or religion. Colleges say the measure isn't needed, but with Congress providing billions of dollars to higher education, they are worried. The measure's chief promoter, Marxist-turned-conservative activist David Horowitz, says an academic bill of rights will protect students from possible political "hectoring" and discrimination by their professors.... The federal government provides loans...