Defense Secretary Chuck Hagel announced a new Defense Innovation Initiative on Saturday as a way to counter a shrinking technological superiority even as congressional unwillingness to allow certain cost-saving measures may put the Pentagon in a $70 billion hole over the next five years. The idea behind the initiative, which includes a Long-Range Research and Development Planning Program, is to “account for today's fiscal realities by focusing on investments that will sharpen our military edge even as we contend with…