NASA's own watchdog: Agency misled on global warming, AP
"NASA public affairs officials criticized by the report called it wrong, saying they were always open and truthful. Not so, according to the report. The report did not directly accuse them of lying, but used more nuanced terms such as "mendacity" and "dissembling." The space agency complained those terms were unjust."
Investigative Summary Regarding Allegations that NASA Suppressed Climate Change Science and Denied Media Access to Dr. James E. Hansen, A NASA Scientist
Editor's note: This report really goes to extreme - and I think slightly absurd - lengths not to use the word "lie". Yet multiple instances where someone at NASA was not telling the truth - or telling slanted/partial truths - was meticulously documented. Unless I am mistaken some of the words used instead mean exactly - or darn close to the word "lie". All you need is to type these words into Google to see what they really mean.
Page 47: "We uncovered no direct evidence to substantiate their beliefs, but the circumstantial evidence (to include the apparent mendacity of one or more senior Public Affairs officials)"
"1. The condition of being mendacious; untruthfulness.
2. A lie; a falsehood."
Then there's this instance: