MALAYSIA'S prime minister Mah-athir Mohammad does not lose an opportunity to bash US investment banker George Soros, who is dubbed a one-man central bank but prefers to be known as a "financial, philanthropic, and philosophical speculator". Mahathir blames Soros for the recent attacks on the Malaysian ringgit that shaved 16 per cent of its value against the dollar. But Soros, whose personal worth is calculated at £625 million, denies attacking the ringgit and has blamed Mahathir for being a "menace to his own country".