(AGI) Houston, July 10 - U.S. President Barack Obama defendedhis widely-criticised decision not to visit the U.S.-Mexicoborder during his two-day visit to Texas, stating that concretesolutions and not theatrics such as photo-ops are needed toaddress the immigration crisis. "The challenge is, is Congressprepared to act to put resources in place to get this done?Another way of putting it is, are people more interested inpolitics than solving problems?" Obama said. . .