Because this idiot in some other situation can be seating in some other country. So to take out some high value US target say someone from US intelligence the o

Because this idiot in some other situation can be seating in some other country. So to take out some high value US target say someone from US intelligence the only thing they have to do is to make a believable sounding call over VOIP line and they are golden especially considering the target would likely have a gun on him which will make it that much easier.