CNN.com – Military on alert for Coke’s chip contest – Jul 2, 2004

Specially rigged Coke cans, part of a summer promotion, contain cell phones and global positioning chips. That has officials at some installations worried the cans could be used to eavesdrop, and they are instituting protective measures. […]

Asked if Coke would curtail the promotional campaign because of the security issues raised, Martin said, “No. There’s no reason to.”

I think he forgot to add: “Not when we paid a PR agent to drum up all this flack for the publicity value”