The investigators say they found no evidence that the university's scientists cheated to prove the existence of human-caused climate change.

VOA: special.2010.04.27

Experts said there was still no experimental evidence to prove that the drop in crime was a direct result of efforts to clean up city neighborhoods.

VOA: special.2009.03.03

So,yes,there is a threat particularly of the use of radioactive material, although we have no specific evidence indicating any capability at this time."

VOA: standard.2009.05.01

"I don't think these children had much of a chance." The court released there is no sound evidence connecting thimerosal to autism.

VOA: standard.2010.03.23

Brennan - who is leading a White House investigation into the incident told ABC's This Week there were bits and pieces of information about the suspect, but no definitive evidence.

VOA: standard.2010.01.03

"We believe strongly that there is no evidence to support any charge whatsoever and we would renew our request on behalf of these three young people and their families that the Iranian government exercise compassion and release them, so they can return home,"

VOA: standard.2009.11.09