The US defence secretary, Lloyd Austin, has been transferred to intensive care after being admitted to hospital just outside Washington on Sunday for a bladder issue. Following a series of tests and examinations, he was transferred to the critical care unit of the Walter Reed National Military Medical Center “for supportive care and close monitoring,” according to a statement from the hospital. “At this time, it is not clear how long Secretary Austin will remain hospitalized. The current bladder issue is not expected to change his anticipated full recovery. His cancer prognosis remains excelle…