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President Obama And The First Lady Host Halloween Party For Military Families

WASHINGTON - OCTOBER 29: Actors, staff and volunteers wait to greet trick or treaters at the White House October 29, 2011 in Washington, DC. President Barack Obama and first lady Michelle Obama hosted military families and other trick or treaters for a Halloween party. (Photo by Brendan Smialowski/Getty Images)

Halloween around the world

Halloween weekend festivities get started all over the U.S. and around the globe.