[Definitely a great start. Don looks approvingly at the radio-shell as he turns it over.] It's missing a few amplifiers, a receiver and some of the wiring... but from just building from memory, you've got a solid base.

[Distracted from that train of thought by the idea of the missing students, Don glances up at Korosensei.] Would they know to send radio signals or some other kind of signal if they were lost somewhere?