Red warning signs are flashing again in Bangkok on the T-shirts of protesters loyal to Thaksin Shinawatra, the billionaire prime minister ousted in 2006 and still dominating Thailand from exile. (Illustration by Jay Wright | Column by William Pesek on Bloomberg View)

Red warning signs are flashing again in Bangkok on the T-shirts of protesters loyal to Thaksin Shinawatra, the billionaire prime minister ousted in 2006 and still dominating Thailand from exile. (Illustration by Jay Wright | Column by William Pesek on Bloomberg View)