The cross memorial at Ground Zero in New York City is back in the center of a legal dispute.
In 2012, a federal district court dismissed a lawsuit by an atheist group who claimed the cross memorial was unconstitutional.
That group has now filed an appeal, saying they are suffering from both physical and emotional damages from the mere existence of the cross.
The American Center for Law and Justice is asking the appeals court to uphold the lower court's 2012 decision.
The ACLJ noted the U.S. Supreme Court has previously ruled exhibits, like the cross, are allowed by the Constitution.