In our time of today, we see more barriers being set up and used in our country. There are companies that make barriers that can be seen physically and electronic ones that cannot be seen with the naked eye. There are barriers set up at our college universities, private, and public schools to keep our students safe while attending classes. When we are traveling on roads such as expressways and local streets we might see barriers set up because of repair work that workers are doing on the road. If these road barriers are not set up on the roads to repair them, the drivers who drive on them could endanger of damaging their vehicles or worst losing their lives. We also see barriers set up in front of sports arenas, large financial institutions, and, government buildings. The barriers that are put in these places are for the purpose of security and safety of the people who come to them. The barriers at these places help to prevent some possible attacks from people who wish to cause harm to the buildings and those in attendance.