Tuesday is the first day of a public inquiry into the death of former KGB agent and whistleblower Alexander Litvinenko. He was poisoned in London in 2006 with Polonium 210, a rare radioactive isotope. On his deathbed, Litvinenko claimed Russian President Vladimir Putin was responsible for the murder. Alan Cowell of the New York Times talks to Robert Siegel.
Copyright 2015 NPR. To see more, visit http://www.npr.org/.
