Acting Defense Secretary Patrick Shanahan believes the F-35 Joint Strike Fighter has "a lot of opportunity for more performance." "I am biased towards performance. I am biased towards giving the taxpayer their money's worth," Shanahan told reporters today at the Pentagon. The acting secretary's views on the high-profile program have been called into question recently by reports that he privately criticized F-35 prime contractor Lockheed Martin's performance, and insisted his former employer Boeing would have executed the program differently. Shanahan...