Russia's invasion of Ukraine highlights vulnerability of nuclear power plants

Ukraine gets much of its electricity from nuclear power, but a series of Russian attacks near nuclear plants over the last two weeks are elevating fears of potential accidents and what they could trigger. John Yang reports on the latest and speaks to science correspondent Miles O'Brien, who has covered the aftermath of Chernobyl and other nuclear accidents, to learn more about the risks. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders