Commentary Dr. Xiangguo Qiu and her husband Keding Cheng have not been seen publicly since February 2020, six months after they were stripped of their security clearances at Canada’s National Microbiology Laboratory (NML) in Winnipeg, Manitoba. Former colleagues are now speaking out on Dr. Qui’s behalf, as the mystery points to “larger issues” at the NML itself, according to a July 8 CBC report. “This is a misunderstanding and I don’t know why I was walked out of the building”—speaking for Qiu was former colleague Gary Kobinger, who headed the special pathogens unit at the NML until 2016. “She didn’t understand,” Kobinger told the CBC. “She was, from the bottom of her heart, saying that this is a misunderstanding.” According to Kobinger, on her trips to China, Qiu was only “doing a lot of the same work we used to do … testing molecules and vaccines from other labs.” China …