Meryl Streep says playing Thatcher was daunting (AP)

U.S actress Meryl Streep arrives for the European premiere of The Iron Lady, at a central London venue, Wednesday, Jan. 4, 2012. (AP Photo/Jonathan Short)AP – She’s a double Oscar winner with a knack for accents, but Meryl Streep says playing Margaret Thatcher was a challenge — although her own experience helped her understand the struggles faced by Britain’s first female prime minister.