A confidential source has passed on the rumor that he's been summoned to Washington for a super-secret assignment. It's only a rumor, remember.
6 seconds sound clip from Superman (1948) - The Reducer Ray (Chapter 3).
You can hear this line at 00:05:04.937 in the Blu-ray version of the episode.
Quote context
[...]
- Nice bit of reporting you did. Little underhanded, of course, but still nice.
- Well, I'm sorry, but my getting a job depended on it.
- Oh, by the way, what about that job?
- You've been on the payroll for hours.
- Now, perhaps we could have some teamwork around here.
- We will.
- Now for other important news of the day...
- Did you hear that broadcast?
- Yes.
- It'll make tougher for us to get ahold of it.
- Not even Superman will keep me from getting that machine. I must have it, and I will have it.
[...]