Can you give some context for this remark? I don't think I've heard of Hauser.
Marc Hauser is a Harvard psychologist, one of the best known experimental psychologists practicing today, with a remarkable publication record. Trouble is, some of his data was fake. Scuttlebutt is that his grad students finally had enough and forced the university to act. Good for them.
LessWrong people may be interested in Hauser since most "Trolley problem" experimental research you have seen here has his signature on it. Hauser's humiliation has led to humorous handwringing from bloggers who know him and poorly disguised glee from bloggers...
http://www.pnas.org/content/107/15/6753.full
http://news.bbc.co.uk/2/hi/health/8593748.stm
http://news.ycombinator.com/item?id=2007859