After Michelle Trudeau's story The Other Big Deficit: Many Teens Fall Short On Sleep aired on Morning Edition on Monday, we asked listeners to submit questions on teens and sleep. We received dozens of questions and posed some of them to a panel of sleep experts. Their responses, edited for brevity and clarity, are below.

Helene Emsellem, neurologist at George Washington University and medical director of the Center for Sleep and Wake Disorders

Raul Malo returns to Mountain Stage for a lively acoustic performance. One of the most powerful singers working in any genre, Malo is best known as the founder and frontman of Grammy-winning, multi-platinum band The Mavericks. When not fronting that group, Malo has broken out as a solo artist, producer, television musical director, and as a member of the supergroup Los Super Seven (which also features members of The Texas Tornados and Calexico).

"Had to monitor Fox for a story. Can't. Deal. With. The. Blathering."

When that appeared on the U.S. Secret Service's official Twitter account on Wednesday it was immediately retweeted by many of the agency's 20,000+ Twitter followers and screengrabs were quickly captured before — as you might expect — it was quickly deleted.

Jennifer O'Mahony is a UK-based freelance journalist.

As she emerged from her airplane resplendent in an emerald coat, smiling as she walked down the stairs into public view, Queen Elizabeth II must surely have felt some pang of nervousness in the knowledge that the last British monarch to visit Ireland was her grandfather, George V, in 1911.

Ruy Teixeirais a Senior Fellow at the Center for American Progress Action Fund

From the Ryan plan, to the Obama plan, to the Gang of Six (now five), deficit mania has officially taken over Washington. Both Republicans and Democrats, while they have different preferred approaches, are single-mindedly focused on cutting budget deficits and relieving the long-term debt situation of the country. Yet unemployment remains at 9 percent and the modest economic recovery that's underway has shown signs of sputtering. What explains this dramatic disjuncture?

The surgery Wednesday to put a patch on Rep. Gabrielle Giffords' skull went as planned and the Arizona Democrat is "recovering well," according to officials at the Memorial Hermann-Texas Medical Center. That's the Houston hospital where she is getting rehabilitation treatment for the gunshot wound she suffered during a Jan.

The U.S, Army Corps of Engineers has opened a 17th bay at the Morganza Spillway, just north Baton Rouge, Louisiana and an estimated 114,000 cubic feet of water per second is pouring through the structure. There are 125 bays on the Spillway, built in 1954 to divert Mississippi River flooding into the nearby Atchafalaya Basin and take the pressure off cities downstream, like New Orleans.

Meghan Clyne is the managing editor of National Affairs.

Communist China has earned praise in the past few years for a perceived thaw in its strict opposition to religious observance — particularly Christianity. A visitor to China will see Christian churches out in the open; a printing facility in Nanjing is the largest Bible publisher in the world. There is the appearance, at least, of a faith that is free and tolerated.

Good morning.

The day's major story looks to be President Obama's late-morning address about the United States' relationship with the Muslim World.

As Alan Greenblatt writes for NPR.org, the president "will attempt partially to close the gap between U.S. ideals about democracy and its strategic interests in the Middle East and North Africa. It won't be easy."

Nathan Brown is a professor of political science and international affairs at George Washington University and noresident senior associate at the Carnegie Endowment for International Peace.