It was back-to-school for New York students this week, but there was a new policy in place. This year, a new policy went into effect, and students are being weighed as part of their health certificate. The data will enable health officials to map childhood overweight and obesity trends based on location.

There are 12 other states -- Arkansas, California, Delaware, Florida, Illinois, Iowa, Missouri, Pennsylvania, South Carolina, Tennessee, Texas, and West Virginia -- with some form of student BMI reporting.

As a parent, I'm not overtly opposed to it. In fact, I remember getting weighed in gym class and during all of my physicals in order to play school sports. I do have a couple of concerns, though. I would hope that student privacy is maintained and their weight isn't being taken in a line where all the kids could see the number on the scale. I would also hope that health and a positive body image is being promoted -- the self esteem of children can be a fragile thing and I hope it's being protected.