Retired US airport body scanners fail to spot guns, knives

Image credit: flickr/thierry ehrmann
A type of body scanner in wide use across U.S. airports through last year (and still in use at court houses and prisons) fails to spot well-concealed weapons including guns and knives, computer security researchers contend.

How can the Internet have too many routes and not enough addresses?

The depletion of Internet addresses would seem to spell relief for aged routers that are struggling to deal with the Internet's growth, but the complicated interplay between those trends might cause even more problems.