Now that the last Indian Point nuclear reactor - situated only 25 miles from Manhattan and 20 million people - has been shut down for good, the activist battle shifts to the decommissioning process. Manna Jo Greene, Environmental Director for Hudson River Sloop Clearwater, explains from her 20 years of working to get the dangerous reactor shut down. Dr. Gordon Edwards of the Canadian Coalition for Nuclear Responsibility, gives a brilliant, clear and brief tutorial on what decommissioning consists of and why it is such a fraught process.