Why is there a cross at the World Trade Center museum?

An atheist group filed a lawsuit against the giant cross at the WTC museum (a public place paid for by all people to commemorate the tragedy) – read here – but many people say this lawsuit is misguided and that the cross brings hope to people, whatever that means, when remembering the event.

I vehemently disagree with the cross being placed there (let alone with the bible that’s being planned to be fused with a steel panel inside…they will also place a star of david, I’ve read, to include another Abrahamic faith particle and to exclude, I’m assuming, anything to do with Islam) because, as usual, it denotes an arrogance on the part of the planners that aligns all signs of hope or what have you with Christianity just because it is the assumption that many people are Christian and they’re around. What do you think?