USAT cycling article - good advice?

I just got my summer issue of Triathlon Life from USAT. On page 48 there is an article about cycling in a group that I’m not really into:

Single file riding - I find it to be safer riding side by side rather than single file most of the time. By riding side by side, it forces cars to move into the other lane, which makes them wait for a clear opening. If I ride in a single file, they’ll often buzz right by, without crossing the yellow line, which is way too close for my comfort. Side by side riding also cuts the passing distance in half, which should get them over quicker. In order for a car to pass my safely, it would need to give me about three feet. Add the distance that I take up on the side of the road and the car should cross the yellow line to make a safe pass. What’s the difference if the car has to go an extra few feet over yellow? It still has to wait for a clear path.

Drafting - According to the article, you should keep a distance of “at least a bike length even when drafting.” That seems like a pretty large distance. Just think, you’re in a group of six riders, all riding single file with at least one length between you. How long will it take for a car to pass? Now double up the group so there are three pairs of two riders, all riding a foot or two behind each other. Now how long to pass? If there are any math folks out there, I’m curious the time difference and which is safer. The math wouldn’t be too hard if you assume the cyclists are going 20 mph and the car 45 mph.

Just my little rant for the day. My wife didn’t really want to hear my complain, so I thought I’d share it with you all.

Adam