National Public Radio: The Obama administration is expected to announce, as early as Friday, new fuel economy standards for cars and trucks. For cars, it will be 30.2 mpg, up from the current 27.5. For trucks, it’ll be just over 24 mpg. The administration was required by law to come up with the standards, which go into effect two years from now. Automakers haven’t voiced any objections. Some environmentalists say the bump in fuel efficiency standards isn’t enough. An administration official told Bloomberg News …