The question of guns
Every time there is a horrible tragedy involving guns, there are calls for more gun control, though the end result of total gun control will be a police state where only criminals, the police and totalitarians are armed.
It is difficult to stop a man who has gone mad. If he does not have a gun, but drives a taxi, he could just as easily kill people by running them down.
At the end of the 19th century, there were few restrictions on gun ownership in Britain, which had long recognized the fundamental right of the citizen to defend himself. As a result there were few gun deaths.
It seems counter-intuitive, but today, with increasing gun laws, there are increasing gun deaths. Citizens are unable to defend themselves.
Two things are necessary: Gun checks that prevent crazies and potential terrorists from having guns and responsible citizens who are armed. They are the best defence against criminals, crazies, terrorists and oppressive government.
It will be impossible to stop every crazy person, but that is no reason to deprive responsible citizens of their rights to self defence.