[Sparkle]

Assuming I knew the consequences of both action or inaction...

I would flip the switch.
And I wouldn't see myself as "playing god" by doing it. I'm a bystander being given the knowledge and tools to make this decision, if I don't make an active decision no one else will and tragedy will occur either way.

My rationale is a simple matter of numbers.
One person dead, and the lives of one network of people changed forever.
Or five people, and five networks of people changed forever.
I would want to minimize the tragedy.

Given the opportunity I would rather make an active choice than stand by and watch.