Because they have a good relationship with some daeva who thought it'd be a good cultural fit.

Attempts are renewed to get the angels who decontaminate reds to talk about things.

If Anitam hears three complaints from one country about people pressuring the angels they will pull the angels and people will have to send their reds to Anitam for decontamination.

The nation of Doet sends their reds to Anitam for decontamination. ...a Doet red pressures an angel.

...that's honestly a little weird. Reds are not typically big on national loyalty. 

(Someone thinks the way to put a stop to this is clearly to shoot the red. Someone else figures that is probably the kind of thing the aliens would get mad about, and it's clean now anyway, they can just arrest it. They do that.)

Doet would like their ex-red back please.

Anitam would like to deter pressuring the angels. Especially reds pressuring the angels, imagine if the angel had told the red the secret. Then a red would know it. Just think.

She's not a red any more. Went purple.

That's why they didn't shoot her. But she is kind of guilty of spying, if you think about it.

She didn't actually get anything out of the angel.

Anitam interviews her. Who told her to bother the angel.

...why do they think someone told her to?

It seems unlikely she just independently decided to pressure the angel.

No, she did. She wanted to know angel-related secrets.

The interviewer thinks she's lying and he should have her hung for spying.

"...if you've already made up your mind why are you interviewing me?"

"If you tell us who you work for and what they offered you and what your instructions were I can knock it down to deportation."

"What would happen to them?"

"We'll ask Doet to extradite them and Doet probably won't."

"I thought I'd be able to sell the information."

"To who?"

"I was gonna offer it to a few people and get them to have a bidding war."

"Who?"

"I didn't have them all picked out."

"I don't think this is as helpful as you can possibly be."