 Author Gregory Bergman wrote in his 2008 book "BizzWords" that the devices were basically a self-made form of the children's toy Lite-Brite.Computer security expert Bruce Schneier wrote in his 2009 book "Schneier on Security" that Boston officials were "ridiculed" for their overreaction to the incident.In his 2009 book "Secret Agents", historian and communication professor Jeremy Packer discussed a phenomenon in culture called the "panic discourse" and described the incident as a "spectacular instance of this panic".