An internet stream of a speech at a university by Federal Reserve Governor Lisa Cook was hacked on Thursday as racist remarks, Nazi symbols and pornographic images peppered the viewing screen, prompting online access to be cut off. Cook, the first Black woman to serve on the Fed's Board of Governors, appears to have continued delivering her in-person remarks at the University of Pittsburgh, but a later question-and-answer session with the audience was at least curtailed, a Fed spokesperson said.