WASHINGTON — Mexico denied a U.S. military plane access to land Thursday, at least temporarily frustrating the Trump administration's plans to deport immigrants to the country, according to two U.S defense officials and a third person familiar with the situation. Two Guatemala-bound Air Force C-17s, carrying about 80 people apiece, flew deportees out of the U.S. Thursday night, the sources said. The third flight, slotted for Mexico, never took off. A White House spokesperson did not reply to a text message seeking comment on Mexico's stance. It was not immediately clear why Mexico blocked the flight, but tensions between the...