http://en.wikipedia.org/wiki/2009_G-20_Pittsburgh_summit http://en.wikipedia.org/wiki/2009_G-20_Pittsburgh_summit the Obama Administration announced a change

http://en.wikipedia.org/wiki/2009_G-20_Pittsburgh_summit http://en.wikipedia.org/wiki/2009_G-20_Pittsburgh_summit the Obama Administration announced a change of venue to Pittsburgh in order to highlight the city's economic recovery following the collapse of its manufacturing sector in the latter half of the 20th century.