I, for one, will quit using Yahoo if this deal goes through.

I would suggest a hyphen between dentist and training, unless of course the animated dentist is training the robot.

As a volunteer firefighter, I will say that turning firefighters into spies is a bad idea.

If criminals have to worry that by calling the fire department they are also calling the DHS, they may be less likely to call in the first place, putting lives and property at further risk. If they do call, they may treat firefighters as hostile parties, placing firefighters' lives at risk beyond the normal hazards of the job.

If firefighters have to worry that each call may be a hostile one, that will distract them from the job at hand--saving lives in immediate peril--and could delay response time in a business where a few seconds or minutes often does make the difference between life and death.

The list of "suspicious" things that firefighters are supposed to be on the lookout for includes cameras, photographs, maps, and chemicals. In my professional life I am a photographer, so my house is full of cameras, photographs, maps, and chemicals (not to mention rubber gloves, an organic vapor mask, etc.)--all perfectly legal--that might fit the DHS's definition of "suspicious."

No doubt there are many other professions with whose details I am not familiar and which I, as an unpaid DHS spy, would not be able to see for what they are.