NEW YORK (AP) — Food trucks are a way of life in New York City. But not just for foodies looking to sample some new ethnic cuisine.

LEWISTON, Maine (AP) — In the whitest U.S. state, thousands of miles from the Mexican border, the debate over immigration is quickly becoming a central issue in one of the nation's most closely watched governor's races.

Mining magnate Gina Rinehart said Tuesday that high costs were hurting resources investment in Australia, as a study found that only the country's agriculture sector was strongly competitive compared with the United States. Rinehart, Australia's richest person, said the resources-rich nation needed to "lower its costs and compete for investment" if it wanted to stop miners from moving to other countries. "One of the things Australia has to learn and appreciate is that for us (miners) to export, people aren't going to buy products because they like Australians -- forget it," Rinehart told The Australian newspaper. "And this is a really big challenge for Australia because we've got very high costs and we've really got to work hard on that if we want to sustain our future, and a good future."