Here is a very interesting article on a little known case of espionage during the Cold War.
Ana Montes was able to spy on the USA for almost 20 years for Cuba. She should never have been able to make it into working at the DIA, if due diligence would have been done while hiring her as an analyst.
Here is an excerpt - "DIA did not require applicants to submit to a pre-employment polygraph exam. So, Montes, a trained Cuban espionage agent with a problematic past was cleared and hired. She began her double duties in September 1985."
She should never have been there in the first place! What were they thinking?
Here is the whole story - http://www.miamiherald.com/2014/08/02/4267428/new-revelations-about-cuban-spy.html
