Commonality Between Tennis and Hospitals - Trusting in the Status Quo

I just read about a controversial call made by the HawkEye camera system at last year's Wimbledon. As a tennis fan, I immediately found this interesting. Apparently the system is accurate to within 3.6 mm on average. In the 2007 final between Nadal and Federer, a critical shot by Nadal was called out, and looked out on TV. However, Nadal requested HawkEye's opinion, and it turned out that the computer called in it by 1 mm. He was given the point. This seems ridiculous to me (and others) since the judgment was taken at face value (100% accurate) even though by its own specifications the computer's ruling was statistically inconclusive. I can't wait to watch this year's final! It seems like the computer should either say "it's in," "it's out," or "I don't know." Nobody questioned this until now?
http://www.spectrum.ieee.org/jun08/6400

It turns out that medical professionals have also been going with the flow. Only recently did someone finally do a study indicating that RFID tags used to track medical devices can sometimes interfere with other life-critical equipment. Previously people assumed that they might but really didn't know if or how severely. Maybe some standardization of a "medical-class" RFID tag would help prevent this interference.
http://www.spectrum.ieee.org/jun08/6405
On a related note, the Supreme Court has apparently indemnified class-III medical device manufacturers from liability for device failures once the FDA has approved them. Limits on liability ok; no liability not ok! Danger Will Robinson!
http://blogs.spectrum.ieee.org/riskfactor/2008/06/faulty_software_in_medical_dev.html