Barack calls for greater fuel efficiency

In the text of his speech to political and business leaders in Detroit, Barack Obama called on American automakers to make more fuel-efficient vehicles.

"For years, while foreign competitors were investing in more fuel-efficient technology for their vehicles, American automakers were spending their time investing in bigger, faster cars," he said.

"The need to drastically change our energy policy is no longer a debatable proposition. It is not a question of whether, but how; not a question of if, but when. For the sake of our security, our economy, our jobs and our planet, the age of oil must end in our time."

Democratic presidential hopeful U.S. Sen. Barack Obama, D-Ill., speaks to local Democrats, Sunday, May 6, 2007, at the Walter Cunningham Center for Excellence in Waterloo, Iowa. (AP Photo/Charlie Neibergall via Yahoo News.)