Kim rules North Korea as a totalitarian dictatorship, and his leadership has followed the same cult of personality as his grandfather and father. In 2014, a landmark United Nations Human Rights Council report suggested that Kim could be put on trial for crimes against humanity. He has ordered the purge or execution of several North Korean officials; he is also widely believed to have ordered the 2017 assassination of his half-brother, Kim Jong-nam, in Malaysia. He has presided over an expansion of the consumer economy, construction projects and tourist attractions. Kim also expanded North Korea's nuclear program which led to heightened tensions with the United States and South Korea.