Roth 401(k) plans, we received a question about their effect on your Social Security benefits.

FORBES: The Secret to Getting More From Social Security

By minimizing the overlap between the two, you also minimize your taxes on that Social Security income (see the answer to the initial question above).

FORBES: The Secret to Getting More From Social Security

And I think the message to Europe -- and, frankly, in answer to your question, I think we've been very pleased with the contributions, just to take the security side of things, that we've seen out of our European allies to the mission in Afghanistan.

WHITEHOUSE: Press Briefing with Jay Carney and Ben Rhodes

Your second question asked whether I thought a landmine ban that did not accommodate these positions would be in the national security interest of the United States.

CENTERFORSECURITYPOLICY: Letter to the Honorable James M. Inhofe

But to address your specific question on the threat level by, particularly, the British, what you heard the Secretary of Homeland Security, Janet Napolitano, say was that the steps that Great Britain took in raising their awareness and some of their screening procedures is commensurate with what had happened over the course of many days after the events of Christmas Day.

WHITEHOUSE: Press Briefing