The investigation into the Boston Marathon bombing continues. Investigators have spoken with the parents of the suspects in Russia. Audie Cornish talks to Dina Temple-Raston about the latest developments.
The Boston Marathon bombing suspects are ethnic Chechens with links to the volatile North Caucasus region of Russia. Moscow's reaction to that fact appears to be as complex as the region's turbulent history.
Tracing the Tsarnaev family roots back to Russia is going to require cooperation between Washington, D.C., and Moscow and of course, as we just heard, this comes at a frosty time in relations between the two countries. NPR's diplomatic correspondent Michele Kelemen joins us. Thanks for being with us.
MICHELE KELEMEN, BYLINE: Thanks, Scott.
SIMON: And first, any signs of cooperation so far?
Steve Inskeep speaks with NPR's Scott Horsley, who has the White House perspective on news of the Boston Marathon bombings manhunt. NPR has confirmed that the two suspects were from Chechnya. For insights on that region, Morning Edition talks with Matt Rojansky, deputy director of the Russia and Eurasia program at the Carnegie Endowment for International Peace.
Tensions have been increasing between the United States and Russia, and things unraveled even more over the weekend. Russia named 18 Americans who will be barred from entering Russia because of an alleged involvement in human rights violations. Here's NPR's Corey Flintoff.