Carie Lemack lost her mother, Judy Larocque, in the Sept. 11 terrorist attacks. Ten years later, Lemack is on a first-name basis with Sen. John Kerry as part of her mission to raise awareness so that another Sept. 11 doesn't happen. The Washington Post/Getty Images hide caption

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A TSA employee being trained in behavioral pattern recognition watches passengers in line at Boston's Logan International Airport in 2010. This week, Logan will become the first U.S. airport to require every passenger to go through behavioral profiling. Josh Reynolds/AP hide caption

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Sean Mullin, CEO of BI2 Technologies, scans his own eye with the MORIS, or Mobile Offender Recognition and Information System. The device attaches to an iPhone and allows police in the field to scan a person's iris, face or fingerprint and then check it against a database to verify his or her identity. Tovia Smith/NPR hide caption

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As part of her exercise routine, Curtis starts most mornings walking a gaggle of neighborhood toddlers to their day care. Tovia Smith/NPR hide caption

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Jazia Pratt fills a bucket with water from a fire hydrant in the afternoon summer heat in Philadelphia. Matt Rourke/AP hide caption

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Brianna Henderson and her brother Ian Henderson play on the Make Way for Ducklings statues in Boston. The bronze figures by sculptor Nancy Schon were installed in Boston's Public Garden in 1987. Joe Raedle/Getty Images hide caption

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Two female figurines stand atop a wedding cake on display in a New York bakery. Lesbian couples are twice as likely to marry as gay couples, UCLA demographer Gary Gates says. AP hide caption

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Revelers celebrate during New York City's Gay Pride Parade, two days after the state Legislature legalized same-sex marriage. Mario Tama/Getty Images hide caption

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British troops survey the scene after a massive bomb, set up by the Irish National Liberation Army, destroyed a public house and disco in Northern Ireland in December 1982. Sixteen people died, including two British troops, and 60 others were injured. Peter Kemp/AP hide caption

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