A key Japanese government adviser Thursday warned in Washington that structural economic reforms in his country continue to move slowly, which has led to problems at banks, a difficult fiscal situation and could potentially spill over to other economies. Taichi Sakaiya, special adviser to Prime Minister Yoshiro Mori, told an audience at the American Enterprise Institute that Japan's economy is still facing major problems -- in particular a significant number of bad loans, which are an aftereffect of the 1980s stock market bubble. Unfortunately, the Japanese economy's structural reforms are moving slowly, Sakaiya said.