New political climate allows foreign companies to come to Cuban trade fair for first time . U.S. companies want to break into Cuba and go home with a bang . Cuba also reeling from global economic crisis . Cuba is cutting supply of U.S. food by one - third .
New political climate prompts U.S. firms to come to Cuban trade fair for first time . U.S. companies want to break into market and go home with a contract . Cuba also reeling from global economic crisis . Cuba is slashing imports of U.S. food by one-third .