<b>''</b><b>I wanted more'' DAVID GILMAN</b><b>One lie put the nation at risk. Another might save it.</b><b>Harry Bristow: policeman, father, chauffeur, fraud.</b>In 1988 Harry made one mistake: he took a bribe, letting a man he knew as Igor into Britain ¿ and he¿s regretted it ever since. So when he recognises Igor many years later as his newly-elected MP, he knows he has to come clean. But the MP recognises him too ¿ and Harry fears what he might do next.<b>Peter Robinson, MP: salesman, politician, bachelor, spy.</b>It was easy to get into Britain in 1988 as an illegal, working deep undercover, but the break-up of the Soviet Union cut Robinson off from his homeland. He¿s inching closer to Britain¿s levers of power ¿ but now the one man who knows his secret has reappeared. With no way to contact Moscow, he must act fast to preserve his position and reap its rewards ¿ at any cost.<b>Manon Tyler, CIA analyst, has just boarded a plane to London ¿ with a report on Russian illegals to read