We've held back because of the danger of radiation to civilians.
5 seconds sound clip from the The War of the Worlds (1953) movie soundboard.
You can hear this line at 00:55:35 in the DVD version of the movie.
Quote context
[...]
- Newly fallen cylinders are elongated.
- Mm-hm.
- We know there are three cylinders to each group and three machines to each cylinder.
- All right. I've seen enough.
- There's only one thing that'll stop the Martians.
- We've held back because of the danger of radiation to civilians.
- Now there's no choice. The White House will confirm an order to use the atom bomb.
- Then our first target will be the initial landing place outside Los Angeles.
- First thing you get there, arrange for the Pacific Tech scientists to monitor the drop.
- I'll send wire orders ahead of you and have the area clear all round.
- We've still time to hit them before dark. Then we'll blast them all over the world.
[...]