Tim Lambert, weary from a long day of reporting on Sept. 11, 2001, checked his answering machine. There was a message from his father: "I've been watching the video all day and those trees are ours."

Lambert stood, stunned by the realization that the Shanksville, Pa., woods he roamed as a child, with their majestic hills and tall hemlock trees, was now the crash site of United Flight 93. His family owned the land, and the question was what to do next.
Over the next two decades, Lambert, then a reporter and now Morning Edition host at WITF in Harrisburg, Pa., has helped discover how we honor the victims. He's gotten to know their families and watched as the crash site has been transformed into a temple of reflection.
That journey is chronicled in the new special "Sacred Ground" with NPR White House correspondent and Politics Podcast host Scott Detrow. They spoke to Morning Edition host Kirsten Kendrick about it.
You can catch "Sacred Ground" on KNKX after Weekend Edition this Saturday morning or listen on the NPR website.