Two men have been charged under the Official Secrets Act following the leak of a secret government memo.
The memo suggests Foreign Office doubts over US tactics in Iraq
The document involved - the Foreign Office's Iraq in the Medium Term - referred to "heavy-handed" US tactics, a government source told the BBC.
Its contents were reported in the Sunday Times in May last year.
Ex-civil servant David Keogh and former MP's researcher Leo O'Connor, both from Northampton, will appear before Bow Street magistrates on 29 November.
Mr Keogh, 49, is a former Cabinet Office communications worker.
Mr O'Connor, 42, worked as a researcher for Tony Clarke, the former MP for Northampton South.
The pair received police bail.
Mr Keogh was charged with an offence under section three of the Official Secrets Act, Mr O'Connor under section five.