U.S., Russia agree on arms cuts

On the first day of a visit intended to mend strained relations, U.S. President Barack Obama and Russian President Dmitry Medvedev agreed to finalize a new arms treaty cutting the number of deployed warheads on each side by as much as a third.

One area in which no agreement was reached was on U.S. plans for an anti-missile system in Europe-- a project the Kremlin fears could threaten Russia's security.