(Elliot Spagat | AP) Joel Caceres, center, pours milk in his coffee as other asylum seekers at a migrant shelter purchase food in Mexicali, Mexico, on Jan. 11, 2010. Caceres, from Honduras, is seeking asylum in San Diego with his wife and two sons. Illegal border crossings have plummeted as the Trump administration has extended a policy to make asylum seekers wait in Mexico for court hearings in the U.S.