The words "of peace" on the end of the formal name were also added during the construction phases - set against a social and historical backdrop of the Cold War and Cuban Missile Crisis, he added. The cross was meant to be a symbol of peace for all people, and peace is a secular concept.
So he says that the cross is undeniably a Christian symbol, but it is also the symbol of universal peace. Is this any different in putting "in God we trust" on our money? Just because you say something doesn't make it so. I can prove that this cross wasn't meant as a symbol of peace. Imagine a crescent moon and star monument that had the words "of peace" tacked on to the end of the name. Now give that monument public money.