made by the lowest bidder

When I was a Private on my first tour in Iraq I found myself in a nasty fire fight. My truck was hit by a grenade and I my power steering unit was hit pretty hard. The truck was still running and all inside were ok. However, we still had to make it to the house. My truck commander ask me how the breaks were. I said I don't know I have not been hitting the breaks too much why? He says well in this truck the power steering and the breaking system run on the same circuit. I laughed and blew him off.  That was until I needed to stop on a down hill slope. My super up armored truck going down hill out of control with no steering or breaks. Two of the three main factors of driving were gone. What mechanical engineer was able to get his degree and fool the government into accepting such a flawed design? I had to as carefully as possible run my truck into the sides of building walls to get it to a slow stop before hitting some civilian car or person. I also found out that the wheels on another truck are made of magnesium. One of the hardest things to put out should it catch fire. My good friend had a problem here when his driver side front tires got hit and his wheel went up in a super hot white flame. He almost did not make it out. He had to almost undress to climb to the other side of the truck to get out before the fire worked its way inside. Who designs these things?