U.S. lawmakers on Monday said they were expanding their investigation of federal biosecurity lapses including problems at the Centers for Disease Control and Prevention that led to the mishandling of anthrax and bird flu pathogens.
Republicans from the House Energy and Commerce Committee said they sent a letter on Monday to the CDC director, Dr. Thomas Frieden, asking him to explain why the leading U.S. public health agency was unable to detect systemic problems involving the handling of deadly agents dating back to 2010.