Brake Fluid Leak problems of the 2003 Kia Motor Optima

I had problem with brakes locking up on 2003 kia Optima, had it at a dealership to get fixed. They said they fixed it, but had same problem. They had it towed, took it back to fix it again, then put a governor on it, said the brakes were now fixed. Well, this evening, enroute to pick my daughter from the daycare facility, I saw traffic stopped, went to slow up by applying brakes and guess what? no brakes! this did not happen all the time, but intermittently, now caused me to have an accident because the brakes did not work! the repair shop at the dealership is the one who said it was all taken care of, however, as you can see , it is not taken care of as the brakes failed!! the brakes did not engage, I was going to try to go in the lefthand lane of the two lane highway on my side of the road, however there was a car already in position on that side and the curb, grass and then a pizza hut on my right, leaving me no where to go but under the bumper of a pick up. It pushed the grill into the radio, therefore the hood is buckled, the bumper destroyed and car will be totaled by the insurance company as it is cost more to repair as it also tore off side strip and other parts on the left hand side of the car. The left hand turn signal blinks twice as fast as it should as I checked out everything as the police officer said it was drivable. I drove it home very slowly with my dad in a car behind me to make sure I did not leak any fluid and also to make sure I got home alright with my 8 year old daughter after we picked her up at daycare. This should not have happened so what is wrong with the 2003 brakes on kia Optimas? if there is a recall on them I need to know as I am trying to find a website for them as I have been told there have been brake issues on kias for several years, one of which is the 2003 kia Optima. Thank you ahead of time for your prompt response. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).