Keep at them Warren! A lot of what they will be doing gives me the heebie-jeebies also, but my curiosity is greater than my fears so I'm looking forward to them firing it up personally. I still have a few lingering issues with their safety reports, but am now reassured that it was just poorly written and incompletely documented rather than the pack of lies I originally took it for.
Your fears are not unreasonable or unfounded though, I'm just too much for the advancement of knowledge not to take the risks. Hey sure we might blow up the planet, but we might also discover ways to abandon this planet and move across the galaxy to a much cooler one with the discoveries they make. You never know until they flip the switch!