Two days before signing a milestone arms cuts pact with Russia, U.S. President Barack Obama unveiled on Tuesday Washington"s new nuclear doctrine declaring potential terrorist attacks and proliferation of nuclear weapons, rather than an attack from a hostile state, the main security threat for the United States.
MOSCOW, June 1 (RIA Novosti) - Russia"s Dinara Safina and Nikolai Davydenko underlined their current good form with straight set wins in Paris at the weekend with unseeded Maria Sharapova continuing her tennis comeback following surgery.