You would think Rugged Individualists would be supportive of Mr. Kimathi's ability to put up any sort of website he wants on his free time, and that the content of any such website is immaterial to his government employment.
Yes, and no.
If he was in private employ, that's between him and his employer. Government employee is a bit different. If he was working the mail room at Center for Nutrition Policy and Promotion or Bureau of Ocean Energy Management, I wouldn't think most people would care. Being at DHS is a bit of a different story. DHS is our Stasi, NKVD/KGB, Ministry of Public Security, Revolutionary Guard, General Department of Intelligence of Public Security or State Security Department.
They deserve the highest level of scrutiny. Each and every employee should be vetted and dismissed if they show genocidal tendencies, as "domestic intelligence agencies" don't have a good track record of respecting human rights. It's no different than screening folks who work with children for sex offender criminal records. As part of the job, it will attract the wrong element. They need to be screened out.