Over 21 students and their families from the Cajon Valley Unified School District (CVUSD) were rescued by U.S. troops from Afghanistan. But a family with three students in the district is still stranded, officials said during a Sept. 2 press conference.  David Miyashiro, superintendent of the Cajon Valley Unified School District, said around Aug. 16 the school district realized that more than 20 students were trapped in Afghanistan as they were visiting relatives during the summer and could not return to the U.S. to attend classes.  “We know where they are, [but] there’s no more ground troops there to help,” Miyashiro told The Epoch Times.  “The U.S. needs to do something.”  Miyashiro said many of these families worked with U.S. intelligence over WhatsApp and Facebook Messenger to direct special operations teams to locate and extract them to the Kabul airport safely.  These evacuees worked with the U.S. military as translators and other positions, and “are not friends of the …