An extraordinary letter apparently written last week by Muhammad Nazaruddin, the former fugitive and onetime treasurer of Indonesian President Susilo Bambang Yudhoyono’s Democratic Party, is shaking the country’s politics to the core ahead of 2014 national elections. The increasingly murky Nazaruddin affair does not augur well for international investors who may have hoped that the country’s rising economic prowess would result in an equally rational political and governmental environment. The letter was made public by OC Kaligis, Nazaruddin’s lawyer, saying in effect that Nazaruddin would shut up about crimes committed by the Democrats if Yudhoyono would guarantee his family’s safety, leading to the obvious if unproven conclusion that the party’s leaders are culpable in as-yet-undisclosed offenses. Analysts say it smacks of a cover-up that could wreck the part y. Founded in 2001, the Democrat Party came into power in the 2004 national elections, almost solely on Yudhoyono’...