Long Border, Endless Struggle
▻http://www.nytimes.com/2013/03/03/world/americas/border-security-hard-to-achieve-and-harder-to-measure.html
A bipartisan group of senators has agreed in principle to lay out a path to American citizenship for an estimated 11 million immigrants in the United States illegally, but only after quantifiable progress is made on border security, raising thorny questions: What does a secure border mean exactly? How should it be measured? And what expectations are reasonable given the cost, the inherent challenges of the terrain and the flood of traffic crossing legally each year in the name of tourism and trade?
Voir aussi :
▻http://www.nytimes.com/interactive/2013/03/02/world/americas/foreign-border-photos.html