Psshhh, the Constitution is a "living document." It means whatever the current politicians in power say it means. After all, there was no encryption back at the start of the country, so surely the founding fathers didn't mean to include it did they?
Sarcasm aside, the Constitution was written with vague terminology specifically because they knew times changed and didn't want it misinterpreted. The intent was clear though, the purpose was to severely hamstring the federal government to keep them from infringing on the rights of the people. Unfortunately over the last 200+ years (the last 120 specifically) the federal government has done everything they can to chip away state's rights and amass more power and control for themselves.