Questions linger over America's role in fighting ISIS
President Obama signed a bill authorizing the U.S. military to arm and train Syrian rebels to fight ISIS. But the President also repeated his pledge not to send American grounds troops into combat. Julianna Goldman reports.
Living to 100: The challenges in extending human life
Atlantic Magazine contributing editor Gregg Easterbrook joins "CBS This Morning: Saturday" to discuss the consequences of rising longevity as average life expectancy continues to grow -- possibly reaching 100 years or more by the end of the century.