On Monday 15th April at 2:38 pm, a video coverage showed that while every person turned toward an explosion in shock and terror, many ran in opposite directions in fear for their lives. One young man named Dzhokhar Tsarnaev looked towards the explosion and then quickly walked away from the direction of the finish line in Boston Sports marathon. The Tsarnaev brothers Tamerlan and Dzhokhar were exposed by the role of video surveillance. A high tech system called “brief cans” was used to analyze local surveillance video of this incident and experts were able to capture suspicious acts. United States have installed videos and other sensors since recent attacks on their country such as the Pentagon 2001. The incident has made international news and public discussions worldwide. But how many people have thought about where the high tech system “brief cans” technology originated from? Which country invented this high class quality technology surveillance that was able to “zoom...