November 10, 2009 5:56 pm Conservationists Argue Border Wall Blocking Migration A wall being built along the Mexican border to stop illegal immigration is stopping wildlife that needs to migrate across that border, conservationists say. Local 2:51 Sarah Jakes Roberts reclaims power in new book tour 3:12 Historic Blaine Mansion on Dupont Circle for sale 3:13 George Washington U. condemns raising of Palestinian flag on campus 2:06 Video captures barrage of gunfire outside DC's Dunbar High School, injuring student inside 1:36 Pro-Palestinian protests at George Washington U. reach 9th day