Scott Pelley reports from Havana, where decades of an embargo has many Cubans expressing cautious optimism
Dzhokhar Tsarnaev's final pretrial hearing interrupted by woman shouting encouragement to suspect in deadly bombing
Among the suggested changes: More money, more manpower, a higher fence, and a new leader from outside the agency
As "The Colbert Report" wraps up, watch a 2006 interview with Colbert as he details what inspired his "high-status idiot" character
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