Pros
all the things everybody else have said it's true. but there is a dark side that people should be aware of.
Cons
I was fired in March of 2018 because I had 5 minor security violations 1and with a TS/SCI. However, I was working on a Secret project. The last day they told me my clearance is intact. However, after a month of interviewing and almost getting a job, I found out there has been a LOJ (Lost of Juristiction) with CAF report put on my record because one of the violations the ISSM had to report to the government. However, the incident was caused for over 5 years prior which the people who actually responsible were retired and long gone. My manager which I believe stood by me and gave me a raise every because I was good employee and got the jobs done. But ultimately the decision was made by security. The managers and the security team doesn't know all the things going on. Maybe eventually they do which by that point it may be too late.