Maya Boehm, an American exchange student at the Chinese University of Hong Kong (CUHK), has her bags packed to fly home at a moment’s notice. On Tuesday, Saint Edward’s University in Austin, Texas, told the 20-year-old that she and her classmates had been summoned home to “ensure the continued safety and security of our students” after chaotic clashes the previous night between anti-government protesters and police on the CUHK campus.The religious studies major has not been given an exact…