I have a 10 month old lab and an 8 year old husky. My lab has started to attack visciously our husky for no apparent reason. Any help out there?

Both dogs are intact males? It could be that the Lab (at 10 months) is starting to get some testerone flowing in "manly" amounts. It could be that there is a female in heat in your vicinity.
IF you don't have any plans to breed the dog, now would be a good time to get him snipped.

they are both fixed females.

Agression in a lab?--my wife had a wonderful female black lab that was murderous for its first few years. Fought with any and all comers, bit several people when they approached my wife or her residence, and was on the hyper side as well. An 8 week obedience course helped alot with the agression and hyperactivity. Good luck

Then, I guess you will have to step in and intervene (each and every time the agression shows up).

Thanks, our husky has been depressed/anerexic since her old mate/buddy died, so she is super thin, and my lab is large for her age. The lab is really going to kill her if it doesn't stop. It happens once-twice a day for no apparent reason. I will try what I can...