Zarine Khan (right) and Shafi Khan, parents of Mohammed Hamzah Khan, speak to reporters in Chicago Oct. 9 after a federal hearing for their 19-year-old son, accused of trying to join Islamic State militants in Syria.
Charles Rex Arbogast/AP
Emily Neblett, a patient at the Monroe Carell Jr. Children's Hospital in Nashville, Tenn., demonstrates circuit pieces from the mobile maker space that are connected by magnets.
Noah Nelson/Youth Radio
The Secret Service released this photo of a "quad copter" that crashed on the White House grounds Monday. The agency says the copter's operator reported crashing it this morning.
Allison Begalman, a student at the University of Southern California, wears goggles and headphones to experience a virtual mortar strike on civilians in Aleppo, Syria.