Reuters: Tropical Storm Igor was close to becoming a hurricane in the Atlantic Ocean on Saturday as it spun westward, but posed no immediate threat to land or energy interests. The U.S. National Hurricane Center said Igor had top sustained winds of 70 miles per hour as it swirled in the open sea, with its center about 1,140 miles west of the Cape Verde Islands. "Igor is expected to become a hurricane later tonight or early on Sunday, and could reach major hurricane strength by late …