Sure. That's the kind of thing - like sun spots. They raise cane with radio reception all over the world. And this thing being so close - why there's no telling the sort of stuff it can do. (he wets his lips, smiles nervously) Go ahead, Charlie. You and Steve go into town and see if that isn't what's causing it all. What do the stage directions tell the reader about Don's feelings? He feels threatened by Steve and Charlie. He may be more worried about the flash than he is admitting. He is confident about the cause of the power outage. He knows that Tommy is right but is keeping his feelings a secret.

He may be more worried about the flash than he is admitting.

Explanation:

Rod Sterling's play "The Monsters Are Due On Maple Street," tells an occurrence at a community in Maple Street where a sudden flash of light sent everything stuck. The appliances stopped working, cars stop running and it seems like every little thing was made to come at a standstill with that one flash of light in the sky.

The given conversation from Act I of the play shows the two men Steve and Charlie planning to got to town to inquire about the shortage. This was right after Tommy told them "stories" about an alien invasion and how "they" would want them to not go anywhere. The stage direction reveals Don Martin "smil[ing] nervously" which seems to suggest that he is a bit scared and nervous about the flash than he dares to admit or show.