Since replacing radio as the most popular mass medium in the 1950s, television has played such an integral role in modern life that, for some, it is difficult to imagine being without it. Both reflecting and shaping cultural values, television has at times been criticized for its alleged negative influences on children and young people and at other times lauded for its ability to create a common experience for all its viewers. Major world events such as the John F. Kennedy and Martin Luther King assassinations and the Vietnam War in the 1960s, the Challenger shuttle explosion in 1986, the 2001 terrorist attacks on the World Trade Center, and the impact and aftermath of Hurricane Katrina in 2005 have all played out on television, uniting millions of people in shared tragedy and hope. Today, as Internet technology and satellite broadcasting change the way people watch television, the medium continues to evolve, solidifying its position as one of the most important inventions of the 20th century.
I think that the right answer to this strange question is that Mr. Chan has anger issues. Cutting and knives are not words that are good to use when it comes to students, children and class because they are forbidden and dangerous. This is my answer because anger issues is a problem where a person is doing this unconsciously because of the anger even if his conscious knows that those things are not right.
