We've had a few at NJ who talked about suing the union for it's "involvement" in the age 70 rule. Of course, the union was trying to get them another 5 yrs from the company's age 65 stance (improving their bank account by about $600,000) but never mind that.
The post above is enlightening, and may mean the end to any litigation the 70+ pilots at NJ had in mind (as ridiculous as it may seem).