Good news; pending construction of several new nuclear plants, the U.S. has approved the new pressurized reactor design from Westinghouse. This will quiet the critics and push forward construction of several new power plants in the United States.
Here's the Wall Street Journal's take on the approval news:
U.S. Clears Reactor Design
Approval of Toshiba's AP1000 Sets Up Possible Nuclear-Power Revival (Westinghouse is a part of Toshiba)
"The AP1000 differs from existing U.S. reactors in several ways. It uses so-called passive systems for cooling, such as the gravity flow of water and natural circulation based on thermodynamics. It also has fewer moving parts, like pumps and valves."
Here's more on the reactor:
The Westinghouse AP1000
Several good explanatory videos at the above link.
Stats on the AP1000 :