I don’t use CFLs so I don’t know the answer. Do they really say to dispose of a broken mercury-filled bulb in a glass jar or a ziploc plastic bag, and to put it in the regular trash? That makes no sense. I can easily see the glass jar being broken on the way to the landfill, and the plastic baggie being torn open with other shards of glass, not to mention many other items thrown away. Voila...the mercury is dispersed! What a great idea the CFLs were! (sarc)
http://www.epa.gov/cfl/cflrecycling.html
That is from the EPA. There are only a few states that require disposal to other that the normal trash bin.