Reuters: Rising US food inflation, now a 25-year high, is reminiscent of the 1970s and will continue for the next five years due to growing world economies, increased food demand and a sharp expansion of corn-based ethanol production, a top food economist said Friday. "What happened in the early ’70s and what is happening today is that we have moved food input price to a new plateau. Ultimately, the consumer is going to have to absorb those increased costs," said Bill Lapp, …