The BBC says a documentary filmed secretly on a university trip to North Korea will be broadcast on Tuesday, despite claims that students may have been put in danger.
Panorama reporter John Sweeney pretended to be a student travelling with a group from the London School of Economics.
North Korea does not usually allow reporters into the country and officials at the university claim the students were put at risk.
The BBC said the trip was organised by Sweeney's wife. The couple spent eight days inside the country for the programme, along with a cameraman.
Mr Thomas said she had organised a similar trip for students a year earlier and the latest visit would have gone ahead even if Panorama had not been involved.
The LSE has complained that the students were not told there was an undercover team of three or that they were filming a high-profile documentary.
British Academy president Sir Adam Roberts and Royal Society president Sir Paul Nurse said the film raised "serious issues" about the credibility and security of British academics working overseas in highly-sensitive circumstances.
The LSW and the students union have demanded the corporation withdraw the programme because students were lied to and could not give informed consent.
The BBC has defended its actions, saying the film was strongly in the public interest.
Head of news programmes Ceri Thomas said the North Korean government was the only party the corporation had deceived. He said the students had been informed of the risks on three separate occasions.
