After successfully treating four Ebola patients last year, Emory University in Atlanta is now leading a government-funded project that will use blood from survivors of the deadly virus to test a novel way of treating infectious disease.
Seven people were killed and a dozen injured when a crowded New York commuter train struck a car stalled on the tracks near suburban White Plains during the rush hour on Tuesday evening, sparking an explosion and a fire, officials said.
The Obama administration has tightened rules governing how the FBI, CIA and other US intelligence agencies use the Internet and phone communications of foreigners collected by the National Security Agency.
Frigid temperatures descended on the northern tier of the US, as a biting chill followed a powerful snowstorm from the central Midwest into the Northeast, prompting warnings of ``flash freezing'' along the East Coast.
Punxsutawney Phil, the groundhog famous for his weather predictions, saw his shadow after emerging from his burrow atop Gobbler's Knob in western Pennsylvania on Monday, forecasting six more weeks of winter.
The US President Barack Obama announced a record $4 trillion budget proposal for 2016 on Monday, as he sought to boost spending on infrastructure, education and research to make the country more competitive and strengthen the lackluster middle-class.