Why is Singapore's first family feuding?

A public rift between the heirs of Lee Kuan Yew, Singapore's modern-day founder, has shot to the fore with the prospect of his two sons squaring off at a July 10 general election.

Lee Hsien Yang formally joined a new opposition party competing against his brother Lee Hsien Loong's People's Action Party, which has ruled the city-state since its independence since 1965...