admitted to 13 of them in 2002. In one instance, Yi Un Hee, a Korean resident of Japan, was kidnapped to North Korea to teach Japanese in a school for espionage agents. In 2002 and 2004, Prime Minister Junichiro Koizumi made two high-profile visits to Pyongyang to press for their return. North Korea eventually returned five of the thirteen kidnapped, claiming the other eight had died. The positive effect on relations disintegrated when Japan claimed that a DNA test had proved that the returned remains of Megumi Yokota, kidnapped at 13 and said by North Korea to have committed suicide, were in fact not hers. Japan has pressed North Korea to come clean on the abduction, but Pyongyang insists that the issue has already been resolved. Many North Korean citizens rely on money sent from relatives in Japan. Some in Japan believe that the government should threaten to cut off those remittances to force Pyongyang to make concessions. Others believe that the political right in Japan is exploiting that and other issues to advance its own nationalist agenda. President Trump brought up the issue at his meeting with Chairman Kim at the request of Prime Minister Abe and he said that "it will be worked on." Other activity There have been several confrontations between the two nations over North Korean clandestine activity in Japan besides the abductions including drug smuggling, marine poaching, and spying. North Korean missile tests are a concern for Japan because the missiles sometimes travel through Japanese airspace and territory. In 1998, North Korea successfully fired a Taepodong-1 ballistic missile that crossed over Japan and landed in the Pacific Ocean. This test launch was viewed as an act of political defiance as negotiations on the future of North Korea's nuclear program development were taking place between North Korea and the United States in New York. The two states held bilateral talks in September 2007, which were resumed in June 2008. On March 17, 2017, Japan held the first ever evacuation drill after North Korean missile tests. On the same day, President Trump told North Korea that it was “behaving very badly” shortly after Secretary of State Rex Tillerson hinted at striking North Korea while on a visit to South Korea. In November 2019, North Korea's state media warned that Japan may see a real ballistic missile in the near future after the Japanese Prime Minister Shinzo Abe