U.S. Defense Secretary Lloyd Austin has been diagnosed with prostate cancer, and his hospitalization since the start of this year was due to an infection following a surgical procedure to treat the disease, a military hospital said Tuesday.A senior White House official said President Joe Biden was not aware that Austin had cancer "until this morning" and that the root cause of his hospitalization was the disease.The announcement by doctors at Walter Reed National Military Medical Center, where Austin has been hospitalized since Jan. 1, and the White House response came as he and the Pentago…READ FULL ARTICLE