Reconciling the spread of nuclear power with the abolition of nuclear weapons will require policymakers, regulators and the nuclear industry to take non-proliferation much more seriously than they have to date. In particular, states should be willing to forsake sensitive nuclear technologies where the 'proliferation costs' are deemed to outweigh any economic benefits. The long-term goal should be a multilateral, non-discriminatory ban on the most sensitive nuclear technologies. In the interim, those states that have forsaken sensitive technologies have policy tools at their disposal to make it less likely that others will seek those technologies. These tools include a willingness to trade in less sensitive technologies, taking back spent fuel, as well as the example set by desisting from sensitive technologies.