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What does the Ground Zero flag from 9/11 have in common with the original Wright Brothers flying machine patent? Both are historically important items for the United States and both are missing. Best-selling author Brad Meltzer enlists America's help to find these and other missing treasures.

Comic Relief is an operating British charity, founded in 1985 by the comedy scriptwriter Richard Curtis and comedian Lenny Henry in response to famine in Ethiopia. The highlight of Comic Relief's appeal is Red Nose Day, a biennial telethon held in March, alternating with sister project Sport Relief.