BALDWIN, Mich.—Hundreds of detained immigrants have launched a rolling hunger and work strike at the North Lake Detention Center, the largest detention center in the Midwest, operated by the private prison corporation GEO Group in Baldwin, Michigan. They are protesting what they describe as inhumane conditions, medical neglect, and a systematic denial of due process. The strike, which began on April 19 and escalated into a coordinated action acr…