Stupid rational (Score 1)

What's to prevent this being used by police to block their images when they're beating or otherwise mistreating people?

Police, who protect the people by putting their own lives on the line, are the ones we should be concerned about. Not the gangbangers, murderers, rapists, and thieves who could potentially use this to mask their presence when committing a crime.
Your statement show's how much of psychological bias you have towards finding the grand conspiracy rather than thinking clearly about a problem. I can't blame you. If all I watched was network television while I ate my happy meal I sure as hell would think 1) All blacks are animals. 2) Cops are evil and hellbent on beating you with a baton 3) The next antichrist will be a corporation. 4) Pillows will replace guns as a means to subdue violent citizens.

Go ahead jump on the bandwagon. But think about this first:
How the hell could HP get every other manufacturer to use this technology.
What about film cameras from last year or twenty years ago. They'll still work.
A law would have to be passed in order to enforce the compliance with this device. Security cameras would more than likely be exempt.

Use your fucking brain before porting senseless drivel.