In sharp contrast to the withering ties between China and Japan, Japan's tourism is blossoming because of Chinese tourists. No wonder Chinese tourists to Japan have sparked much controversy back at home, where they have even been described as "traitors" by some netizens.

But should the people's exchanges bear the brunt of the online anger?

After repeated provocative speeches and actions by Japanese politicians' trying to whitewash Japan's atrocities during World War II, the Japanese government dealt a new blow to bilateral ties by green lighting 18 new textbooks on Monday.