In 1942, the economic concerns of Uno's family were compounded when Uno's father was apprehended by the FBI; with George Kumemaro being subsequently held in detention centers in North Dakota, New Mexico, and Texas. Transferred to the Grenada Relocation center, and later to the Crystal City Internment Camp, Uno reunited with his father in the fall of 1942. Although four of Uno's brothers volunteered for military service, all returned from the war without injury. While Uno's father was one of the last to leave the Crystal City Internment Camp in Texas, Uno himself was one of the last
Nisei to be released. Having been held in internment camps for four and a half years, and having lost almost all personal possessions during the war, Uno's family was forced to start their lives anew in 1945–6. Although he eventually returned to Los Angeles, this period of imprisonment and relocation had a profound effect on his life that he would never forget. Quoted later from his introduction to Executive order 9066, he wrote that " Time has healed some of the old wounds, but the scars are not visible, they are there in the deep recesses of that psychological corner of our minds". == Activism between 1960-1980 ==