Judith Ursitti is a Massachusetts mother of two children with autism spectrum disorders. Her son, Jack, 7, has severe autism, while her daughter, Amy (not pictured), who is 11, has Asperger's. Richard Knox/NPR hide caption

German Chancellor Angela Merkel and French President Nicolas Sarkozy met in Berlin last month for negotiations on the European debt crisis. They meet again on Tuesday in Paris in another attempt to stabilize the faltering economies in the eurozone. Ferdinand Ostrop/AP hide caption

Bus Stop: President Obama waves before boarding his bus after having lunch and greeting people at The Old Market Deli on Monday, in Cannon Falls, Minn., during his three-day economic bus tour. Carolyn Kaster/AP hide caption

President Obama speaks Monday at the town hall-style meeting at the Lower Hannah's Bend Park in Cannon Falls, Minn. Obama is on a bus tour of Minnesota, Iowa and Illinois where he is scheduled to speak with people about economic issues. Joe Raedle/Getty Images hide caption

The "Tribute in Light" interim memorial to the World Trade Center twin towers was first lit six months to the day after the Sept. 11 terrorist attacks. In The Submission, Amy Waldman imagines the controversy surrounding a fictional memorial to the attacks. Adam Rountree/AP hide caption

Tawakkol Karman is a leader of the anti-government protest movement in Yemen. She has received death threats during her career as an activist but remains committed to bringing democracy to her country. Sean Carberry/NPR hide caption

Many people with sleep apnea wear a CPAP machine mask in bed to help them breathe. Amy Walters/iStockphoto.com hide caption

Lombardi's bakes its pizzas in a coal-burning oven. The pizzeria opened its doors in 1905 in Manhattan's Little Italy neighborhood. Courtesy of Lombardi's Pizza hide caption