President Obama on Tuesday commended Russia's cooperation with the U.S. since the Boston Marathon bombing. Russia had asked U.S. authorities to investigate whether bombing suspect Tamerlan Tsarnaev had ties to extremist groups.
"The Russians have been very cooperative with us since the Boston bombing," Obama said at a White House press conference, according to a rush transcript. "You know, obviously, old habits die hard. There's still suspicions sometimes between our intelligence and law enforcement agencies, 10, 20, 30 years back to the Cold War. They're continually improving. I have spoken to President Putin directly. He's working with me to make sure those who are working this are cooperating with us fully."