Simplify the following text for a Grade 9 native English-speaking person.
Original: George Iain Duncan Smith ( born 9 April 1954 in Edinburgh , Scotland ) is a British politician who is the Secretary of State for Work and Pensions in the Conservative-Liberal Democrat coalition government .
Simplified: George Iain Duncan Smith ( born 9 April 1954 ; often referred to by his initials `` IDS '' ) is a British politician .