[It's okay buddy, Hiro's focus is pretty much on Eren's thoughts and explanations, too. Sure there are bad people in the world, but nothing like the titans. There's a visible wince at the mention of the population though.]

...that's really bad. [The tone's soft, like he's unaware he actually said it out loud even as he continues to tinker.] How're you guys surviving if you can't kill them fast enough? I know you mentioned the military but if it's still a problem how are you staying safe?