A prison cell in Holman Correctional Facility in Atmore, Alabama, as seen on Oct. 22, 2019. The Alabama Department of Corrections abruptly canceled a $1 billion health care contract for what it said was the contractor's "failure to adequately fulfill its contractual duties." (File)The Alabama Department of Corrections has terminated a $1 billion health care contract with a troubled Tennessee company for what it called a “failure to adequately fu…