The shoe screening is not for explosives it's for detonators, explosives materials screening is done randomly at a different machine. Folks it might be a pain and it might be bubba himself patting your ankles while showing you half his crack as he bends over, the point of the matter is that increased security screening bad or not , has helped in restoring public confidence in Air travel, a critical element in restoring the economy, the real screening goes on in the shadows by shifty people you don't see, bet on it !. .So the next time you sigh while half your dapper ensemble is re-X-rayed, show a little respect for the extremely large amount of dead people at ground zero, keep your damn mouth shut or help contribute to security.