Ash Carter says the US might monitor an intercontinental ballistic missile test, insted of shooting it down.
Defense Secretary Ash Carter says North Korea's nuclear weapons capabilities constitute a 'serious threat' to the U.S.
North Korea declared on Sunday it can test-launch an intercontinental ballistic missile at any time from any location.
The Republican Party's 2016 official platform, drafted over the summer, seeks to exempt women from "direct ground combat units and infantry battalions."
A former Department of Defense aide used a government credit card to pay large bar tabs, NBC News reports.
Secretary of Defense Ash Carter speaks to CNBC's Josh Lipton about the government's Defense Innovation Unit to improve the country's security with the help of Silicon Valley.
As President Obama announces a military expansion in Syria, an analyst says the U.S. is running through its supply of bombs.
The visit would likely inflame tensions with China, which has been asserting its territorial claims in the region.
CNBC's John Harwood reports on Defense Secretary Ash Carter's remarks on Capitol Hill and President Obama's remarks in Cuba about the attacks in Brussels, as well as those from current presidential candidates.
As U.S. tech companies butt heads with the government, Defense Secretary Ash Carter contended that the sides need to cooperate.
In the high-stakes battle between security and privacy, there's no winning — but there should be cooperation, one venture capital says.
CNBC's Eamon Javers sits down with Ashton Carter, Secretary of Defense, about the importance of technology and explains the importance behind the new defense advisory group. Also, his insight on how to tackle hacking.
CNBC's John Lipton and Eamon Javers look at the latest on the Apple/FBI fight including Apple filing a formal objection to the order to assist the FBI and comments from Secretary of Defense Ash Carter.
The Apple FBI fight has renewed interest in security's biggest annual event: RSA Conference kicks off in San Francisco on Monday.
Defense Secretary Ash Carter says he wants to speed up the battle to defeat the terror group.
Defense Secretary Ash Carter will order the military to open all combat jobs to women in 30 days.
The decision would deploy a small number of U.S. special operations forces in an advisory role for Syria.
The Pentagon will replace its failed program to "train and equip" Syrian rebels with a far less ambitious program. NBC News reports.
Ashton Carter, who faces Senate confirmation, was deputy secretary from 2011 to 2013.