DEA redacts tactic that's more secret than parallel construction
This is probably referring to "SOD tips" or "SOD tip-offs", where intelligence-community information is "laundered" through a source that provides a tip to investigators, as discussed in this Reuters article from last year:<p><a href="http://www.reuters.com/article/2013/08/05/us-dea-sod-idUSBRE97409R20130805" rel="nofollow">http://www.reuters.com/article/2013/08/05/us-dea-sod-idUSBRE...</a>