It is an interesting video, though.
According, again, to that article (which, however, has a potentially odd sequence of publication and update dates below its byline), weapons-capable drones are currently being considered by the HPD:
New Police Drone Near Houston Could Carry WeaponsAuthor: Stephen Dean
Published On: Nov 10 2011 01:51:31 PM CST Updated On: Oct 29 2011 05:38:32 AM CDT...
In 2007, Local 2 Investigates uncovered a secret Houston Police Department test of a different kind of drone, fueling a nationwide debate over civil liberties and privacy.A constitutional law professor and other civil liberties watchdogs told Local 2 Investigates that questions about police searches without warrants would crop up, as well as police spying into back yards or other private areas.
HPD fueled that 2007 controversy even further by suggesting that drones could be used for writing speeding tickets.
The backlash prompted Mayor Annise Parker to scrap HPD's plans for using drones when she took office....
(
http://www.click2houston.com/news/New-Police-Drone-Near-Houston-Could-Carry-Weapons/-/1735978/4717922/-/59xnnez/-/index.html)
It seems that the mayor (the same Annise Parker:
http://www.houstontx.gov/mayor ) still has plans for the use of drones.
The recently considered drones, however, are from a different company than the one which was reported in the 2007 video:
not from (as then) Insitu,
http://www.insitu.com ,
but from (now) Vanguard Defense Industries,
http://vanguarddefense.com .
Another indication of the age of the video is the reference in the video (at time index 1:50 - approximately) of drones being used "last month" to "snuff out" California wildfires:
http://dsc.discovery.com/news/2007/10/25/wildfire-drone.html. Here is the list of fires in California from 2011:
http://cdfdata.fire.ca.gov/incidents/incidents_current. No wildfires are listed for November of 2011 - only three small fires.