There's only one thing tough about it though...
6 seconds sound clip from the Bullets or Ballots (1939) classic radio play.
You can hear this line at 00:27:01 in the radio play.
Quote context
[...]
- If anything happens to Kruger, and I'm going to see that it does, Brenner steps up.
- But I'm not going to let him because I'm going to step into Mr. Brenner's part.
- How?
- Is that all you got to tell me?
- That's all for now, except... Keep on smashing them as fast as you get my instructions.
- There's only one thing tough about it though...
- Al Kruger... He's just as much of a rat as the rest of them.
- He'd knock me off in a minute if he found out.
- Because you haven't given him an even break?
- Yeah.
- Well, I haven't given you one either.
- We had another man on the force who tried to smash that mob.
[...]