Robert Ludlum's The Janus Reprisal

Jon smith is attending a conference in the hague on infectious diseases and wakes in his hotel room to find a man aiming a gun at him. Smith neutralizes the shooter, and finds three pictures in the assassin's pocket: one of an unknown woman, one of peter howell, his friend and a former agent with britain's mi6, and one of him. When smith tries to leave the hotel, he encounters a second group of terrorists in the process of attacking it. The hotel is not the only target in the hague. Within minutes of smith's narrow escape, bombs go off at the train station, airport and at the headquarters of the international court of justice, where a pakistani warlord, oman dattar, is being held while he is tried for crimes against humanity. In the resulting chaos, dattar escapes