It's no secret that many, many Geocaches have caused bomb scares in the U.S. and Canada since our game was invented in 2000. Elsewhere in the world too, of course, but we are a North American based blog, and the majority of these incidents occur in the United States. We doubt that anyone keeps statistics on the number of bomb squad incidents, but the Blogger, who has checked in and read the Geocaching.com forums several times a week for almost 10 years (where almost every incident is reported), would estimate the average to be between two and three per month.
A Google search of the phrase "Geocaching Bomb Scares" generally returns two Geocaching.com bookmark lists in the top results, both of which we at the blog have been aware of for several years. Bomb Scares and Other Fun Stuff, is the older of the two. However, this list has essentially been abandoned, and a quick scan of it tells you it hasn't had any new caches posted to it since 2007, although the adopted owner of the list is still an active Geocacher. The other top result, Bad Ideas, Bomb Scares, etc. is a very well maintained and regularly updated bookmark list, and is is the subject of this Blog post. The bookmark list owner, David Brierley (Geocaching.com Username: dbrierley), has graciously agreed to be interviewed by this Blog.
