And if they put a hand scanner on 1 other door then what? Having a sign that indicates where a court is, is not silly.
a) You didn't read the article.
b) Tinkering with technology to do fun things is of no interest to you. http://www.amazon.com/
http://store.apple.com/us/browse/home/shop_mac
http://www.rakuten.com/
http://www.ebay.com/electronics
https://www.youtube.com/
http://www.microsoft.com/en-us/default.aspx
etc..