Ambassador Samantha Power says texting kills more U.S. teen drivers than drinking.
Obama emphasized to Merkel the need for sanctions, should the situation escalate.
Three people were killed and hundreds wounded in the April 2013 bombing.
France is going ahead with the sale of two warships, despite the crisis in Ukraine.
Sen. Kelly Ayotte (R-N.H.) said Thursday that she is writing a bill that would impose tough new financial sanctions on Russia and provide aid for Ukrainian forces.
The Senate Intelligence Committee has already voted to release the report.
The United States’ image around the world has rebounded over the last year, according to a Gallup survey released Thursday.
The legislation now heads to President Obama, who is facing a difficult veto decision.
The Russian government refused to provide the FBI with information about one of the Boston bombing suspects two years before the attack last year, The New York Times reported late Wednesday.
An inspector general’s report found Russian officials declined several requests by the FBI to obtain additional information about Tamerlan Tsarnaev, the older brother who died in a shootout with police.
Carter said Hillary did little for peace, and praised John Kerry's tenure at State.