Having 2 of my coworkers killed this year on their bike( both by drunk drivers), I wont venture out on a bike until all my path is a completely protected from cars.
There seem to be a lot more drunk drivers in Chicago than in New York. Weird.
[According to wikipedia, Chicago has a car mode-share of about 60% vs. 30% in NYC. However, that's probably dominated by commuting, and my guess would be that non-commuting uses (such as going to bars) would show an even more dramatic difference...]