Ambassador Krister Wahlbäck argues that the submarines intruding Swedish waters in the 1980s must have been Soviet submarines because of Soviet interest in the area, even though there is little hard evidence. Ambassador Rolf Ekéus says in his comment that the Soviet Union can "scarcely be excluded as a possible violating state. Nor can the possibility of intrusions of Western submarines be excluded". To Professor Tom Nichols, Ekéus statement about Western submarines is absurd, because why would Western submarines play "cat and mouse with the Swedes? … The Soviets, by contrast, had excellent reasons to test Swedish abilities".
Tunander, Ola (2005) Comment: The “Suspect” Who Investigated Himself, Parallel History Project on NATO and the Warsaw Pact.