4,000 deaths a year are occurring as a result of truck and bus accidents. And this is serious business.

Mr. President, I was necessarily absent for yesterday's vote on the motion to invoke cloture on the motion to go to conference on the House message to accompany H.R. 240, the Department of Homeland Security Appropriations Act. I would have…

We've got to take it very seriously.

the commitment we must make to our nuclear deterrent, which as Secretary Carter so aptly described as the 'bedrock' of our national security strategy.

Mr. Secretary, are there steps you can take now that will protect our investments from this happening?

Given the deteriorating situation with Mr. Putin, Congress authorized and appropriated $220 million to end our reliance on the RD-180.

Mr. Secretary, do you feel that the 2019 goal is attainable?

What do you see as the Department's role in cyber security?

The steps that are needed now against the Islamic State in Iraq and Syria (ISIS) include keeping the military pressure on the ISIS network.

Mr. Secretary, our coasts and all of our people and assets, including our naval infrastructure, are at risk from sea level rise.

Last year, Admiral McRaven expressed concern about the impacts that budget cuts, including sequestration, could have on special operations.