Singapore political drama exposes frailty of Lee's succession plan

SINGAPORE -- The ruling People's Action Party of Singapore is walking on thin ice in light of a series of political controversies involving high-profile politicians who were expected to have played a big role in the country's next chapter of leadership.

From a graft probe on a cabinet minister to the resignation of a senior official over an extramarital affair, the rare political drama highlights the challenges Prime Minister Lee Hsien Loong faces in executing his carefully tailored succession plan.