Josh Silver as guest host for one last day, joined by Dr. Salman Hameed discussing the beginning of the universe, and by poets Rich Michelson and Afaa Michael Weaver.
The U.S. and Arab allies opened a new front against militants by joining Syria's three-year-old civil war.
Between 550,000 and 1.4 million people in West Africa could be infected with the virus by 2015, according to a report issued on Tuesday.
A son-in-law of Osama bin Laden, was sentenced to life in prison following his conviction on terrorism charges.
The government's own watchdogs say they tried to hack into the site and found a critical vulnerability.