Here is an example where the college of William and Mary's president removed a cross from the very chapel Jefferson said prayers in when he was a student at the school. And remember this is a school that was founded partially to propagate the Christian faith.
"Administrators at the College of William & Mary, responding to months of harsh criticism from alumni, ordered the immediate return of a cross to the Williamsburg school's historic Wren Chapel yesterday. Alumni angered by the removal of the cross in October threatened to withhold millions of dollars of donations -- including a $12 million gift."
http://www.freerepublic.com/focus/keyword?k=WilliamAndMary