hack of americans ever. the fbi claiming today that these four members of china's people's liberation army were responsible for the 2017 breach of equifax, one of the nation's biggest credit reporting agencies. >> the scale of the theft was staggering. >> reporter: the theft included the names, dates of birth, and social security numbers of nearly half the population. also stolen, the driver's license numbers of at least 10 million americans. the attorney general saying the hack imposed substantial cost and burdens to the victims. >> they had to take measures to protect themselves against identity theft. >> reporter: and beyond the massive privacy breach, authorities say the computer hack is a part of broader plan by china to commit economic espionage. >> all right, let's get to pierre thomas, he's live in shington ton and attorney general barr making another headline today, saying that he'll accept information about ukraine from president oe biden and his attorney rudy j