The federal government on Monday confirmed that a Russian criminal group is behind the hack of the Colonial Pipeline company. The pipeline -- the largest of its kind in the U.S. -- was shut down after a cyber extortion attempt. The Biden administration is working with the company to investigate the hack. William Brangham speaks to Megan Stifel of the Global Cyber Alliance about its implications. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders