Rio de Janeiro officials are hoping that a splashy new Guggenheim museum there will help the city. “Local officials are hailing the proposed museum project as part of a grand new vision of Rio, the South American capital of sun and samba that in the future also could be considered an art lover’s tourist destination. But even as the project inches closer to final approval, the new Guggenheim branch’s critics are growing in numbers, threatening to derail the city’s plans. They say the museum should be subordinated to more pressing social needs such as roads, schools and health care…”