"American society, composed of diverse races and ethnicities, has a lot of tolerance of different kinds of people and can embrace them all as Americans. Korean society, however, is composed of a single ethnicity. It is more intolerant to people of different ethnicity and skin colors. Koreans have a strong bond to people of Korean ethnic origin even when, as in the case of the gunman, a large proportion of their upbringing took place in a different culture. That's why there is widespread mourning and collective guilt over the gunman's behavior and its consequences. It's doubtful whether the South Korean reaction will really help anyone... In its guilt-laden reaction to the Virginia Tech massacre South Korea may be muddling America's healing process. The American reaction is that the crime was committed by a single isolated individual who happened to be South Korean, and that it's not South Korea that committed the crime. But South Korea doesn't seem to make a distinction in this sense... Koreans are in shock and concerned that this incident will have a negative impact on South Korea's well-built reputation and the future treatment of all Koreans... But it's solely Korea's perspective, and it's an over-reaction."