Heinous attacks in Colorado and Washington DC show a new face of US political violence that's closer to last year's college campus radicalism than the Islamist extremism of yesteryear, lawmen and experts told the Daily Mail. Recent strikes were inspired by protests against Israel's war in Gaza that upended top schools after Hamas militants launched raids. The suspects in these attacks yelled 'Free Palestine' before arrest, echoing chants from US college campuses and anti-Israel rallies.