A bomb went off in a phone booth Saturday night near the King's Chitralada Palace in Bangkok, wounding one man. Police say they have found no clues about the identity of the bomber, but have set up 84 checkpoints in risk-prone areas in the capital. Searches of vehicles and suspicious looking passersby will be conducted from nighttime until 5 am daily. Police Lt-Gen. Jongrak Jutanont, Assistant National Police Chief, said the bomber wished to stir up a sense of chaos in the country, not harm anyone.