Take a random selection of photographs of America in 2012 and 2002 and 1992 and, except for the skinny jeans and the porkpie hats, you'll be hard-pressed to tell the years in which the pictures were taken.

Take a random selection of photographs of America in 2012 and 2002 and 1992 and, except for the skinny jeans and the porkpie hats, you'll be hard-pressed to tell the years in which the pictures were taken.