A new U.S. citizen holds an American flag during a naturalization ceremony in July. An Arizona law will require graduating high school seniors to pass the same civics test given to candidates for U.S. citizenship. Mark Lennihan/AP hide caption

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Arizona Department of Corrections inmate Joseph Wood was executed by lethal injection in July. It took 15 doses and nearly two hours for him to die. AP hide caption

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La Roca restaurant in Nogales, Mexico, draws a mix of American tourists and locals. It used to have an American bank account and credit card until the bank closed the account. Jude Joffe-Block/KJZZ hide caption

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Ramon Maldonado takes his driving test with the Arizona Department of Transportation Motor Vehicle Division. Many young immigrants protected from deportation under the Obama administration's new policies began pursuing driver's licenses in the state Monday. Ross D. Franklin/AP hide caption

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The Supreme Court in Washington, D.C., voted against Arizona's appeal, which would have allowed a state ban on driver's licenses for young undocumented immigrants. Carolyn Kaster/AP hide caption

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Nick Johnson of the Arizona Wildcats is called for an offense foul as he drives on Josh Gasser, No. 21 of the Wisconsin Badgers, in overtime during the West Regional Final of the 2014 NCAA Men's Basketball Tournament. Arizona's fans rioted after the close loss. Jeff Gross/Getty Images hide caption

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Apple has bought a factory in Arizona that will be re-purposed to make sapphire glass. The material is used in the iPhone 5s, seen here, as well as in the wristwatch industry. Andy Wong/AP hide caption

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Food bank client Jamie Senik takes a break near her garden plot sponsored by the Community Food Bank of Southern Arizona. She grows food for herself and her diabetic mother. Pam Fessler/NPR hide caption

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Former Granite Mountain Hotshot firefighters walk past ceremonial firefighter boots and gear during a memorial honoring 19 fallen firefighters in Prescott Valley, Ariz., on Tuesday. Pool/Getty Images hide caption

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Holding on to each other: Firefighters hug during a memorial service Monday in Prescott, Ariz. They were honoring 19 others who died Sunday. Michael Nelson /EPA/LANDOV hide caption

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