As is almost always the case, the first to bring it to my attention is Ross Runkel at his LawMemo Employment Law Blog, SCOTUS will review "cat's paw" case. The issue in the 7th Circuit case of Staub v. Proctor Hospital>(3/25/09):
In what circumstances may an employer be held liable based on the unlawful intent of officials who caused or influenced but did not make the ultimate employment decision?A couple of quick points. The underlying cause of action is USERRA which is not a statute that often comes under Supreme Court review. Since the Cat's Paw theory is more general in nature, I don't think that means we will necessarily get much insight into how the Supreme Court views USERRA. However, given the group that it protects, one would expect most courts to give it as pro-employee favorable view as any statute.
And one of the frequently mentioned candidates for the Supreme Court position is Judge Diane Wood of the 7th Circuit. She was not on the panel that decided Staub. It would be somewhat ironic if she were appointed and one of her first employment law cases as a Supreme Court Justice was reviewing the handiwork of her generally more conservative former peers.