President Trump’s new national counterterrorism strategy accuses the EU of letting hostile groups “exploit open borders and related globalist ideals” President Donald Trump has signed a new US national counterterrorism strategy that describes Western Europe as both a target and an “incubator of terror threats,” while also singling out drug cartels and violent left-wing extremists as major dangers to America. The 16-page document , released by the White House on Wednesday, says Washington’s counterterrorism policy will be guided by “America First,”   “common sense,” and “Peace through Strength” principles.…