A battle over whether a highway guardrail system manufactured by Trinity Industries is unsafe is raging in courts across the country. A recently-unsealed whistle blower lawsuit claims that there are hundreds of thousands of defective guard rail heads across America’s highways. The particular danger at issue is the end cap system known as ET-Plus, which was supposed to be designed to collapse and channel the guardrail away from a vehicle which crashes head-on into the end of the guardrail. Instead of channeling the rail away from the vehicle, some tests have shown that the guardrail became a spear and actually penetrated the vehicle like a spear.