Mr. Crawford accumulated over 45 years’ experience and became a recognized expert in the design, analysis, and testing of structural and mechanical systems and components subjected to blast, shock, and impact loads. After having served as President of K&C for over 15 years, where he led and grew Karagozian & Case, Inc., to an internationally recognized scientific and engineering firm, he became a Principal and Chairman of the Board. Throughout his distinguished career, John visited numerous embassies and other government and commercial facilities where consideration of blast and impact threats are important, providing vulnerability assessments and designs for reducing their risks to terrorist attacks. He performed peer reviews of other A&E’s blast effects related designs, provided technical support in legal matters related to blast and shock effects and structural failures, and generated a variety of software tools for design and analysis related to blast and shock.