This seems dumb to me
The New York Times > Health > Vital Signs: Screening: Watching Diabetes and Dollars
Writing in Annals of Internal Medicine, researchers said the benefits of such universal screening were outweighed by the costs.
My optometrist "screens" her patients. When she has trouble fitting lenses she pulls out a glucometer -- in fact, she's got the same model do I know -- and tests the patients blood at the finger. If high, she recommends that you go see your doctor.
Let's see, that costs about $1.00 or so per strip? Doesn't seem that expensive. Of course, that's not a 3 hour fasting test, but frankly I don't like them and I don't think they should be done until a few bad fasting tests.