N Korea trip students 'did not give full consent'
Students who went on a trip to North Korea say they were not given the option of consenting to being accompanied by an undercover BBC reporter.
Alex Peters-Day, LSE Students' Union general secretary, said several of the students she had spoken to said they felt their lives had been put at risk.
She told the BBC John Sweeney's actions had put at risk LSE work "not only in North Korea but in other politically sensitive areas."