The Obama administration is committed to supporting investment in seaports because they are the lynch pin for $3.15 trillion of business activity and 13.3 million jobs in the United States, Transportation Secretary Ray LaHood said in his " Fast Lane " blog Wednesday after he and Maritime Administrator David Matsuda met the previous day with members of the congressional PORTS Caucus. The PORTS (Ports Opportunity, Renewal, Trade and Security) Caucus is a new discussion forum fou...