comment on my summary please!

Nowadays the humanity has achieved a lot of what has been considered impossible in earlier epochs; flight is one of them. But it’s a fact that airline companies have strict security rules and checks, and force passengers to submit to them, sometimes these checks may seem excessive and even humiliating, but they are essential.
One of the security measures is having to take off shoes and to place them on an X-Ray belt. Another strange requirement is the limited quantity of liquid a passenger can take on board. In fact, liquids are a great threat to aviation, because they can be used as ingredients for bombs in terrorists’ hands. Having to take electronics out of one’s luggage is also necessary. The reason for this is that would-be terrorists can turn it into a device that could cause damage and deaths of innocent people.
However security measures in airports have a strong rationale behind them. For example, the requirement to take off shoes and placing them in an X-Ray scanner is connected to the detection of hidden items, and for a more thorough and fast check. Quantities of liquids allowed on board are limited because it is possible to make a liquid bomb. Therefore, measures that are often considered excessive or humiliating are necessary for preventing terroristic acts or violence on board.