As soon as your crosshairs intersect it, your gun will lock on to it.
In a camera, the crosshairs help the photographer to set the focus.
You should be able to tell from looking at a website whether you are getting legal music or getting music that might put you in the crosshairs of the Recording Industry Association of America.
Shriver has smug liberal baby boomers in her crosshairs and Kevin is a chillingly good shot.
Eventually, when your crosshairs turn red they will start going after you.