There is a long history of innovation in America's relatively short existence; from lone inventors experimenting in garages to collaborating and competing with international scientists. Many of the following 13 inventions have become fixtures in daily life.
Boston bombing suspect Tamerlan Tsarnaev was one of 875,000 names in a database the US uses to produce at least nine watch lists, but the naming didn't prevent the attack. Some security experts worry that data overload may be hindering US counterterrorism efforts.
Doing Good
What happens when ordinary people decide to pay it forward? Extraordinary change...
Scott Budnick works in the dining room as customers arrive for a free meal at the Mathewson Street Friendship Breakfast in Providence, R.I.
Scott Budnick serves breakfast – with a side order of respect – to the homeless
Sunday breakfast at a Providence, R.I., church is more than a free meal. Half the volunteers are homeless themselves: 'It's their [own] breakfast that they're putting on.'
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