Law enforcement officers, government officials, and homeland security firms from around the world will gather in Phoenix next week for Border Security Expo 2011; the event will be held on 15-16 February and will feature the heads of major DHS agencies as well as Mexican government officials; organizers estimate that millions of dollars worth of contracts will be signed; the expo will focus on preventing illegal border crossing as well as combating drug trafficking, drug wars, and gangs; firms will have the opportunity to learn of DHS future procurement needs, in particular what DHS will require for SBInet’s replacement; the event attracts buyers from across the United States, Europe, Asia, and Latin America