NEW You can now listen to Fox News articles! A lone gunman’s alleged attempt to storm the White House Correspondents’ Dinner on Saturday is the latest sign of a "metastasizing" wave of political violence fueled by social media, retired NYPD inspector Paul Mauro warned Sunday. "This reminds me a bit of what it was like at the height of the [post-9/11] 'age of terrorism', or 'age of counterterrorism...'" Mauro told " Fox & Friends Weekend ." "As it began to metastasize [beyond Afghanistan]... it began to permeate the internet, and that's the great common denominator here, is the rise of the internet, and the rise of social media specifically, has allowed this ideology to disseminate into corners where previously it would not have found so much support," he added. Mauro's remarks came after authorities said 31-year-old suspect Cole Thomas Allen allegedly rushed a Secret Service checkpoint at the White House Correspondents' Dinner armed with multiple weapons.…