Read paragraph 11 of the linked article:
"I apologize for this poor translation into your language. Please forward this letter to your military intelligence agency", the letter, handed over to the FBI, stated, "I believe this information will be of great value to your nation. This is not a hoax."
Who "handed" the letter over to the FBI?
As I understand it, the foreign country did. I think this guy picked a country (not China) that couldn't be bothered with this in any way, and did the good diplomatic 'thing' by passing it along to the local authorities, on condition they aren't named as 'rats', so to speak.
If so, what followed was not entrapment but a natural course of events.
This couple couldn't get any unluckier.
Remember John DeLorean and that cocaine trial of the 80s?
If the government puts together a sting then how do you get a conviction? It's extremely close or over the line of entrapment.
I'm not defending these two people. I'm going after the rule-of-law where the government establishes a criminal enterprise and then invites people to the enterprise. Legally, it would be like a law enforcement agency establishing a street gang, giving immunity to the officers, and then prosecuting people the officers recruit into the gang. Basically, if it was NOT for the government then the criminal organization would have never been established in the first place. Legally, the government officials who formed the gang are a RICO entity.
Not defending these people, my guess is it will be quietly plea bargained away. An appeal court needs to squash this sort of government activity.