Secretary of defense insists U.S. will not pull out of Iraq; 3D printed limb helps young musician play the cello. Source

Defense Secy: No plans to pull troops out of Iraq; Young girl defies disability to become musician Source

The lawsuit contends that the Boy Scouts of America has known since its early years that it attracted pedophiles into its ranks of adult leaders, yet avoided public acknowledgement of the dangers for decades. Source

Sheriff’s departments across the border area of Colorado, Nebraska and Kansas have been flooded with at least 30 reports since mid-December. Source

The Pentagon says it has no intention of pulling U.S. troops out of Iraq, despite a draft letter which appeared to show plans to reposition troops ahead of a potential withdrawal. CBS News national security correspondent David Martin and CBS News White House correspondent Weijia Jiang join CBSN to discuss. Source

The Iowa caucuses are less than a month away, but not every campaign is focusing on the state. Michael Tubbs, co-chair of the Bloomberg campaign, joins “Red and Blue” to discuss the former mayor’s strategy. Source

Former National Security Adviser John Bolton says he will testify in a Senate impeachment trial if he’s subpoenaed. CBSN legal contributor and assistant U.S. attorney for New York’s Eastern District, Keir Dougall, joins CBSN’s “Red and Blue” to discuss. Source

Voice-activated technologies are one of the biggest trends to watch at this year’s CES — which includes platforms like Apple’s Siri and Amazon’s Alexa. CNET executive editor Roger Cheng is at the convention in Las Vegas and joins CBSN’s Laura Podesta with more. Source

The launch boosts the number of Starlink internet relay satellites to 180 as SpaceX builds a vast constellation. Source

Magen Fieramusca allegedly abducted Heidi Broussard, whose body was later found in the trunk of Fieramusca’s car. Source