America's Other Border: High Tech, High Trust
Debate about America's borders is decidedly a one-sided affair. Rising illegal immigration and lingering worries about security have focused a bright light on the southern border. Left in the shadows is the northern border - a 4,000-mile stretch of land that's sparsely guarded even though it's twice as long as the US-Mexican border and sees far more international commerce. It's also much more varied. ALFREDO SOSA for the Christian Science Monitor.