The big question is whether the Thai army will intervene to restore order in tension-ridden Thailand. Jeffry Babb reports.Thailand, the “land of smiles,” is not a happy place, as the nation’s most powerful institutions, backed by the yellow-clad urban elite, confront the shaky government.Former Thai Prime Minister Thaksin Shinawatra, ousted in a military coup two years ago, is still the ringmaster in Thai politics even as his opponents take to the streets to oust the current PM – who also happen…