From The Sunday Times

Officers from MI5’s counter-espionage section are investigating possible damage caused to Britain and the West by Herman Simm, a high-ranking Estonian security official who has confessed to spying for Russia.

In an operation worthy of a 1960s spy novel, Simm is reported to have used an antiquated radio transmitter to send classified information to Russia.

He is accused of betraying Nato plans for Kosovo’s independence; the position of the alliance on last summer’s war between Russia and Georgia; and secrets from the American missile shield in Europe.