A new exhibit is on display at the state House in Harrisburg that details the worst nuclear accident in American history. The Three Mile Island meltdown happened 45 years ago at a generating station outside of Harrisburg. Officials say even now, the lengthy decommissioning at the long-closed site is decades away from being finished. A watchdog group that monitors the progress says the Number Two reactor is still highly radioactive. State House archivist Taylor Mason says the Three Mile Island display has been their most popular exhibit yet. It includes documents from a special investigating committee, vintage photos, and video from the meltdown.
