Please suggest any corrections or improvements to this blog post.

I have seen this sight too many times. Kovi, my own dog, a Samoyed, frequently had this expression on his face. And I have learnt much from it. I intend writing in more detail about the subject of aggression in dogs. It is a complex subject, aggression can arise due to a number of reasons. However I thought I'd touch on the subject and just mention a few important things about what to do (and not to do) when dealing with a problem of dog aggression.

Avoid creating the environment or situation which triggers off the aggression in the dog. So, if for example your dog becomes aggressive whenever you pick up a brush to groom him or her, simply STOP picking up the brush!
Interact minimally with the dog. Do not give the dog any importance. If you return home and he or she comes to greet you, just walk past. If he or she starts butting with his or her head to be petted, just fold your arms.
Make sure you do not allow the dog on sofas, beds etc - high places. If he or she goes up on a sofa or bed, coax the dog down with a treat and shut him or her out of the room.
Make sure you take the dog for VERY long walks, unless you suspect that the dog is showing some signs of aggression due to being in pain.
Ensure that whenever leaving the house, you go through the door first; ditto when returning from the walk.
Feed the dog only after a walk. Ask him or her to obey a command before putting down the food bowl, ideally the "Down" command.
Make sure that the dog is never in the same room where there are children, whether supervised or not.
IMMEDIATELY consult a vet. There may be an underlying medical problem.
After having ruled out the possibility of underlying medical problems, IMMEDIATELY consult a qualified dog/canine behaviourist. Ask others about his or her track record from forums or FB pages.
OBEY the professionals to the dot.