The Pentagon is seeking congressional support for its plan to expand prototyping efforts in lieu of formal acquisition programs in the face of a tight budget environment, a senior defense official told lawmakers. In his prepared testimony to the Senate Appropriations defense subcommittee Wednesday, Alan Shaffer, acting assistant secretary of defense for research and engineering, told lawmakers the Defense Department is expanding its use of developmental and operational prototyping with an eye to help protect against future threats. "Throughout the...