Interesting philosophical question :)

[spacechef]

There's a possible follow up question to the train track dilemma. Instead of a lever, imagine you're standing next to someone on a bridge, watching as the train barrels towards four workers. If you push the gentlemen next to you off the bridge, you'll be able to save the four workers. Do you do it? If you answered yes to pulling the lever, why would you answer no to pushing the man off the bridge? Mathematically, the result is the same.

SHAMELESS PLUG ALERT

Also, check out Radiolab, they gave an interesting podcast on morality, as well as a bunch of interesting podcasts. The one on games might be interesting for those of you who obsess over Outwitters tactics and strategy.