A character keeps popping up in this country’s political theater. He walks into a hearing room with a story nobody expected, drops it like a grenade, and then disappears. Weeks pass. Sometimes months. Then he resurfaces, blinks into the cameras, and says that none of it was true, a Senate insider narrated to Nosy Tarsee.

Nosy was told the choreography does not stop until the real big fish is reeled in.

A retired military man, or a low-level aide, or a driver becomes a “surprise witness.” He names the big fish. The hearing makes the evening news.

Then the trail goes cold — the witness is unreachable, his lawyer does not take calls, his family has moved. When he finally speaks up again, it is not to reporters. It is in a sworn affidavit, filed quietly, saying that he was coached, or paid, or frightened into testifying against people he barely knew.

Nosy was told this had happened before, under different roofs, with different suitcases and sums. Cited were controversies in shipping, fertilizer funds, and road repair.

Find a witness with something to lose, dangle something he needs — money, protection, a scholarship for a child — and let him carry the story that a senator or a congressman cannot himself carry without exposure.

The source said senators are now afflicted with recantation fatigue. Lawmakers who have seen this movie enough times are no longer content to shrug at a recantation and move on to the next agenda item.

There is talk of tightening the perjury law further — heavier time, heavier fines, and a clearer path for the person defamed by a false witness to go after whoever thought up the story, not just the man who told it.

Whether that talk survives the next news cycle is another matter as this town has passed stiffer laws before and watched the same trick play out again two administrations later.

The industry, if that is the word for it, has never lacked for customers. Somewhere there is always a politician who needs a name attached to a suitcase, and somewhere there is always a man broke enough, or scared enough, to be that name, for a while.

The Senate grumbler, who has sat through more than one of these hearings, put it simply: the witness disappears, but the business model never does.