There isn't such a thing as being totally safe even in your own home: small disasters - like those you face in the kitchen - eventually happen. Think about them
There were more guns in American Churches this past Sunday, than there have ever been before. This is a change for the better. It reduces the options for potential mass
You can't see anybody standing right behind you, but they are there, following your traces through the virtual world. Then they easily scan your everything till you have nothing private left.