The Congress of the country is ringed by two-meter tall grilled metal barriers soldered together apparently to thwart a suicide car bomb attack. Behind this metal wall, 3000 vizored, kevlar-wearing robocops -- the Federal Preventative Police (PFP, a police force drawn from the army) -- and members of the elite Estado Mayor or Presidential military command, form a second line of defense. Armed with tear gas launchers, water cannons, and reportedly light tanks, this Praetorian Guard has been assigned to protect law and order and the institutions of the republic against left-wing mobs that threaten to storm the Legislative Palace -- or so the President informs his fellow citizens in repeated messages transmitted on national television.