Brazil said recently that it will bolster policing of its part of the Triple Border Area with Paraguay and Argentina. The move is welcome, if overdue. The Triple Border Area has long been identified as a fund-raising, training and procurement haven for diverse terrorist groups, including al Qaeda and Hezbollah. Brazil's federal police said last week that they have established a new unit and will increase river and air patrols in the area. Authorities said they will combat drugs and arms smuggling, but adhering to a traditional state of denial, they did not mention terrorism. Still, terrorist groups would be...