Earth to Mr Kass, not only does Brazil and the US not share a common border, they are located on different continents. Open border discussion was clearly referring to more open trade policies, something most mainstream Republicans and many Democrats support. This would mean better US access to Brazil's vast natural resources. Thru most the US history open trade has mostly benefited the US and could be argued transformed our country from a weak colonial colony to a world power. To equate this with no borders is a political hack job of the worst kind. Shame  on you.