Last week, the United Nations acknowledged some responsibility for the cholera epidemic in Haiti that broke out six years ago, killing more than 9,000 people.

But the Court of Appeals for the Second Circuit ruled that despite this admission the UN cannot be sued in U.S. courts. The victims and the families of the victims have 90 days to decide whether they would like to appeal the case up to the Supreme Court, and journalist Jonathan M. Katz says that may happen.

Katz, a longtime reporter on Haiti, says cholera wasn’t reported in Haiti until UN peacekeepers from Nepal arrived. (Nepal had an active cholera epidemic at the time.)

These peacekeepers stayed at a UN…