Cannabis Factories..

I was watching a programme last night about people growing Cannabis in houses.. Was interesting.. Helicopters circulate certain areas, (in this case, Bristol), and can pin-point from the air, houses that are being used to grow this stuff! I’m not a regular smoker, but have had the occassional pull, and they reckon too, that these days the weed/skunk is much more stronger than what it was many years ago. Did anyone else see the programme? Also, you Cannabis Mad people, they use Google Maps to look at houses, and zoom towards windows and condensation from the inside is a sign that Cannabis may be growing!