MUNICH — The US and
Russia on Saturday finalized a nuclear arms treaty that limits the
number of atomic warheads the former Cold War foes are allowed to
possess — securing a key foreign policy goal of President Barack Obama.
New START treaty was approved by the US Senate in December after
Obama pressed strongly for its passage, and Russia ratified the deal
The treaty went into effect when US Secretary of
State Hillary Rodham Clinton exchanged the ratification papers with
Russian Foreign Minister Sergey Lavrov on the sidelines of an
international security conference in Munich.