Thailand long has been the land of smiles, a friendly, informal place equally hospitable to backpackers and businessmen. But politics has gotten ugly in recent years.

Now a cartoonish dictator out of a Gilbert and Sullivan comic opera runs a not-so funny junta which jails opponents and suppresses free speech. The bombing of a popular Hindu shrine in Bangkok demonstrates the danger of terrorism becoming a tactic by the disaffected, in which case life in Thailand could generate far more frowns than smiles.

Gen. Prayuth Chan-ocha seized power last year promising happiness, prosperity and security. But the junta has failed to deliver all three.