This article indicates there was also a "suspicious smell"
http://www.myrtlebeachonline.com/mld...l/15336981.htm

(Please, hold your jokes. )

With that said, people really need to get a grip. This can only be described as full paranoia.

If there's a silver lining here, it's that the more we have these types of bogus false-alarm diversions due to onboard liquids - smuggled or otherwise - the more likely the airlines are to wake up and realize what stupidity like this is costing them.