If this is how the masses think about this issue, after reading the comments here, I know that humanity has zero hope of ever being free from the rule of psychopathic murderers! Are you people out of your minds? People saying things like its good, it will benefit society, don't care about being observed in public, worry about it falling into the wrong hands? It already is in the wrong hands! They are in the hands of governments, which are authoritarian and rule by the use of violence! In the 20th century, governments committed mass democide, which means they killed more than 260 million of their own citizens. This does not take into account the estimated 130 million people (which could be higher) that died in all the wars combined during that same period, also at the hands of government! When you add them up, that's nearly 400 million people worldwide that have been slaughtered by people who believe and adhere to the most dangerous thing people can believe in, which is someone, or a group of people, having the right to rule over you. People commonly refer to this belief system as government. Individual criminals the world over could not even come close to inflicting the amount of death and destruction on other individuals and the environment than governments. Not even possible! And you guys think that putting technologies like this in their hands is a good idea? Folks, please start getting educated outside of those government education camps known as schools, because this is how you are taught to think inside of those institutions. Governments are good, represent you, you must obey their authority etc. etc. That is a very, very dangerous and lethal way to think!

https://www.hawaii.edu/powerkills/NOTE1.HTM
https://www.hawaii.edu/powerkills/20TH.HTM
https://www.hawaii.edu/powerkills/NOTE5.HTM