The title of this report sounds a bit uninteresting, but the content itself is very revealing. NASA formed a committee to look into medical and behavioral health services at Johnson Space Center after the arrest of former astronaut Lisa Nowak. This committee looked at a number of issues (from the opening remarks): delivery of medical and behavioral health care for NASA astronauts, development of an astronaut code of conduct, structure of the Astronaut Office, and alcohol use by astronauts before flight.
You can read the full report, as well as associated fact sheets from the NASA web site.
Finally, if you want to skip the report and just read a summary, check out the Washington Post's "NASA Ignored Warnings of Drunk Astronaut."
Want more resources on space? Check out the library's guide.