"you fucking monkey" First off, LOL at this!
Second, while I'm an EE I do deal with vacuum systems in my day job, I do respect them and understand that there are risks, and in any system where energy is stored. I also understand that a tanker which isn't designed to hold that pressure is totally different from a system designed to do a job. There are big vacuum systems all over the world, and big pressurized systems all over the world.
My point is twofold:
1) A vacuum with a ~14psi pressure differential is less dangerous than an equivalent pressurized system with a much larger pressure difference.
2) Although hyperloop would be the largest such vacuum system in the world, the design of systems designed to hold vacuum or positive pressure is very well understood and thus it can be undertaken safely.