Just a few paragraphs from the story.
http://www.wired.com/news/politics/0,1283,60629,00.html
"We need a vision of how we're going to move humanity ahead, and
then we need to harness science to do it," Clark told a group of about
50 people in Newcastle attending a house party -- a tradition in New
Hampshire presidential politics that enables well-connected voters to
get an up-close look at candidates.
Then, the 58-year-old Arkansas native, who retired from the military
three years ago, dropped something of a bombshell on the gathering.
"I still believe in e=mc˛, but I can't believe that in all of human history,
we'll never ever be able to go beyond the speed of light to reach where
we want to go," said Clark. "I happen to believe that mankind can do it."
"I've argued with physicists about it, I've argued with best friends about it.
I just have to believe it. It's my only faith-based initiative." Clark's comment
prompted laughter and applause from the gathering.
Gary Melnick, a senior astrophysicist at the
Harvard-Smithsonian Center for Astrophysics, said Clark's faith in the
possibility of time travel was "probably based more on his imagination
than on physics."
While Clark's belief may stem from his knowledge of sophisticated military
projects, there's no evidence to suggest that humans can exceed the speed
of light, said Melnick. In fact, considerable evidence posits that time travel is
impossible, he said.