[Traveler59]

The problem I foresee is that the Law Enforcement departments are going to get too comfortable with their ‘toys’ and over confident in their abilities, and some nutcase with a grudge is going to scour the web and come up with the recipes for IED’s and put a whole new world of hurt on the Keystone Kops and their toys. What happened in Boston could be coming to a street near you.

[ApplegateRanch]

...some nutcase with a grudge is going to scour the web and come up with the recipes for IED’s and put a whole new world of hurt on the Keystone Kops and their toys.

More likely, the nut case will scour several sources, then either wait for the cops to "go home safe"; or wait until the cop leaves.