syrians are voting for a president today but little doubt about the outcome. the current leader assad is expected to win. he has been locked in a three year civil war with rebel forces. human rights activists say more than 160,000 syrians have died as a result. scientists plan to release detailed information about a mysterious noise, possibly that of an ocean impact reported by two undersea receivers about the time the jet vanished. they say the noise did not come from an area of the indian ocean where crews have been searching for the plane. lead scientists say there is a one in 25% chance that the noise is related to the malaysian jet, but it is a chance worth taking. president obama spends the day in poland as he begins a three-nation european visit. mr. obama is expected to urge leaders there to keep up the pressure on russian president putin over his threatening movements toward ukraine. president and putin scheduled to visit france on friday to mark the 70th anniversary of d-day.