It's wider than this. A "person of interest" will be attacked either way. A "normal boring person" won't be targeted directly, but may be swept up in an attack

It's wider than this. A "person of interest" will be attacked either way. A "normal boring person" won't be targeted directly, but may be swept up in an attack on a "person of interest". But there's a third case: "normal boring people" become interesting just by being together in a big group, even if no particular "person of interest" is among them.