What are the challenges of nuclear power

Nuclear energy is amazingly effective at producing great quantities of power from tiny amounts of fuel.  This video explains the main problems of the nuclear power

Our ability to mine great amounts of energy from uranium nuclei has led some to bill nuclear power as a plentiful, utopian source of electricity.

But rather than dominate the global electricity market, nuclear power has declined from a high of 18% in 1996 to 11% today. What happened to the great promise of this technology? M.V. Ramana and Sajan Saini detail the challenges of nuclear power.