Heck Pat, Sorry if you took offence to my tongue in cheek comments and yes you have raised excellent valid points. Here in NZ we can't sue anybody like over in the States and if that had happened in NZ.,the Transport/Civil Roading people would of looked at the barrier,scratched their heads and then decided that the barrier could be better designed and after 20 + years of meetings extra,we the public would still be waiting for improvements.
At the moment people are going on about making our roads safer to stop accidents,but at the end of the day,it is the idiot behind the steering wheel that must take full responsiblity for their actions or lack of.
Again Pat ,I'm sorry if you took my humor the wrong way.