A total of 33 people, including the gunman Seung-Hui Cho, 23, were killed Monday at Virginia Tech University in the deadiest shooting rampage in modern US history. The whole of the United States is stunned and shocked, and so is the entire world.
At the time when people, full of sympathy, are plunged themselves in an extreme sorrow and grief, they cannot but naturally ask such a question: Why it (the shooting rampage) has been again occurred in the U.S., and again in on the campus? In fact, this is not beyond people's expectations, as it is neither the first tragedy, nor the last, because there are two reasons involved:
First, the Second Amendment to the US Constitution specifies that the American people are endowered with the "right to keep and bear arms", which cannot be encroached upon. So the sale and purchase of firearms are l