Can't bring myself to download this

It is a cap and trade tax simulation program from the EPA.  I'm double triple quadruple wary of downloading .exe's from unreliable sources. I'd say the big government fetishists at the EPA qualify as unreliable to me. Probably installs software on your PC nagging you to turn in off (worse than what it came with, anyway).  I would love to see how fast I could crash the economy, but I'm guessing the sim auto-corrects with rainbows and unicorns or something else.