The ghosts of  Lenin and Mao might well be smirking. Communist and
 authoritarian nations are moving to take global leadership in, and 
profit from, the commercial use of nuclear power, a technology made 
possible by the market-driven economies of the West. New research and 
development could enable abundant, affordable, low-carbon energy as well
 as further beneficial products for industry and medicine
 Yet 
outdated and burdensome regulations and restrictions have stifled 
nuclear innovation in the U.S. and other Western nations, and are 
pushing these opportunities to China and Russia.
 China is joining
 Russia to build five new reactors in Iran—regardless of what becomes of
 the current negotiations over Tehran’s nuclear program. Beijing and 
Moscow are also marketing nuclear technology and infrastructure to other
 Mideast and Asian nations. China and Russia have a clear commercial and
 strategic purpose in advancing nuclear technology abroad, technology 
that the West seems loath to exploit.
 If the world is serious 
about shifting to low-carbon energy, nuclear energy is the most direct 
path. Nuclear power is the densest (in watts per square meter of land) 
and safest (in deaths per joule) form of energy known to man. Yet the 
expansion of nuclear power and other commercial applications of nuclear 
reactions have stalled in the West since the 1980s.
 This is 
partly due to fears of unseen radiation and memories of accidents like 
the 1986 Chernobyl disaster, at a facility originally designed to 
produce weapons, in the now defunct Soviet Union. Mainly, though, what 
holds back nuclear power is its high cost, which is almost entirely due 
to government regulations and restrictions that have kept the industry 
confined to minor yet expensive improvements to existing reactor 
designs. Out-of-the-box thinking on new reactor concepts that could be 
far cheaper and safer is systemically discouraged. The most common 
retort to any new idea in the nuclear industry is along the lines of 
“that will never be approved in my lifetime.”
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