No one questions that Israel, Cuba, and other nations have a right to control entry and exit. Communes require visitors schedule in advance, rather than pop in unannounced. I doubt anyone reading this leaves their doors unlocked, or wants to host a party to which anyone can invite themselves. The poor USA has an entire collection of folks demanding an end to borders. Business wants cheap labor. Banks dream of an international economy. Anarchists don't believe in nations (but lock their cars). The "race industry" wants a bigger base of support. Offspring of America's affluent harbor "white guilt". But, does anyone want an open border with chaos: http://www.commondreams.org/views/2009/08/03/femicides-juarez-violence-against-women-mexico