PRC's current relationship with North Korea and position on a unified Korea is seen as dependent on a number of issues. A unified Korea could prevent North Korea's nuclear weapons program from destabilizing East Asia as well as the PRC government. The 2010 United States diplomatic cables leak mentioned two unnamed PRC officials telling the Deputy Foreign Minister of South Korea that the younger generation of PRC leaders increasingly believed that Korea should be reunified under South Korean rule, provided it were not hostile to PRC. The report also claimed that senior officials and the general public in PRC were becoming increasingly frustrated with the North acting like a "spoiled child," following its repeated missile and nuclear tests, which were seen as a gesture of defiance not only to the West, but also to PRC. The business magazine "Caixin" reported that North Korea accounted for 40% of PRC's foreign aid budget and required 50,000 tonnes of oil per month as a buffer state against Japan, South Korea, and the United States, with whom trade and investment is now worth billions. North Korea is seen in PRC as expensive and internationally embarrassing to support.