The U.S. Department of Veterans Affairs provides inconsistent treatment to veterans with depression and may be underestimating the number of vets who suffer from the condition, according to a government watchdog agency. The VA also needs to do a better job monitoring veterans who are prescribed antidepressants and in tracking suicides, according to a new report by the U.S. Government Accountability Office. The GAO analyzed VA data from the 2009 through 2013 fiscal years and found inconsistencies in the way veterans were treated and medical records were kept. It also found that the VA’s own clinical guidelines were not always followed. VA officials did not respond to requests for comment about the report.