I like frozen squeeze.

Yes and rightly so. 1) Heart rate monitors come in versions that can record data, and version that do not record data. 2) It is an excellent tool for endurance based exercise training and learning about physical health. 3) If data is collected for scientific purposes and you have not been notified, then it is highly illegal. 4) If data is collected by government agents (i.e. teachers)for other purposes, then you and everyone else here has been voting for the wrong people. 5) Don't let your kid take his heart rate monitor on this bus: http://www.fox2now.com/videobeta/watch/?watch=b4857769-5b0b-4b89-bc23-09476439ac79&cat=empty&src=front&title=RAW%20VIDEO:%20Bus%20Beating%20Caught%20On%20Tape

Ditto in Tuscaloosa. You can bust your ass slipping on them in the grass, like ball bearings on a concrete floor.

they take 100 years to show up? Are we still experiencing a warming trend?