Leeson, 28, admitted to altering documents in a desperate bid to conceal losses of more than $1 billion on derivatives trades. His Singapore defense attorney, John Koh, said Leeson went all-out to cooperate with the investigation in the hope that he would earn a lighter sentence. In doing so, he may have implicated some of his superiors – a former managing director had his passport confiscated–and with time off for good behavior he could be out in a few years. Even so, Leeson will have ample opportunity to tally up his own losses–and to dream of home sweet home.