Revising Export Controls

Unlike Canada, the U.S. has prevented space commercialization due to its fear of technology use for military purposes. The Toshiba incident, where critical propeller-grinding technology was leaked to the Soviets, heightened this fear during the 1980s.

http://acuriousguy.blogspot.com/2010/05/itar-foreign-policy-and-space-focused.html

Space commercialization will require legal reforms, perhaps even stricter rules, since the dual military/commercial use issues will not disappear, but will increase due to the spread of terrorism and nuclear know-how worldwide. China, Russia, Japan, Europe and the U.S. keep close reins on their space technologies for this reason so we are likely to see lively debate between business people and policymakers over the extent of space tech transfers to space and terrestrial applications. Balancing national security with sustainable commerce is probably the biggest issue facing the space industry.