<P> The academic John Delury has described the sanctions as futile and counterproductive . He has argued that they are unenforceable and unlikely to stop North Korea's nuclear weapons program . </P> <P> On the other hand, Sung - Yoon Lee, Professor in Korean Studies at the Fletcher School, and Joshua Stanton, advocate continued tightening of sanctions, targeting Pyongyang's systemic vulnerabilities, including blocking the regime's "offshore hard currency reserves and income with financial sanctions, including secondary sanctions against its foreign enablers . This would significantly diminish, if not altogether deny, Kim the means to pay his military, security forces and elites that repress the North Korean public". </P>

What are the current sanctions on north korea