Yes, OPSEC is right in saying that Hillary Clinton should be in prison. Her email violations broke multiple federal laws, and others who have committed similar crimes have been sentenced to prison. Additionally, Comey testified before Congress that some of her claims were lies. When Martha Stewart was questioned by the FBI and lied, she was then prosecuted for lying and was sent to prison for that.
No, Hillary Clinton should not be in prison, however, I do believe that there should be consequences for her actions. Her emails and lying were all detrimental to the United States of America, but jail time is not the answer to stopping it. Putting Hillary Clinton in jail will not solve anything that is happening, allowing her to do her job, with consequences, is the better option in my opinion.
Hillary Clinton has certainly made some mistakes during her political career, but she has not broken any laws, particularly any laws that would result in prison time. For example, the e-mail scandal was a result of her breaking an executive order, not a law, and if she had been found quilty, she would simply have had to talk to the President.
No, Hillary Clinton should not be in prison as OPSEC claims she should be. While OPSEC is regarded as the determining force for when classified intelligence becomes a threat to national security, their opinion is not substantial enough in this case to put Hillary Clinton in jail. There is no direct link between her email usage and a threat to national security.