Article continues below advertisementMegyn Kelly's fiery takedown of President Donald Trump over his Iran rhetoric has captured headlines, but some media observers say the moment reflects something deeper about how influence works in today's attention economy.As Trump's comments about wiping out "a whole civilization" sparked outrage, Kelly didn't hold back."I don't know about you, but I am sick of this s---! I'm sick of it. Can't he just behave like a normal human?" she said, calling his remarks "completely irresponsible and disgusting" and adding, "He should not be doing it.