Want to get your teeth whitened? You may soon have more options. The U.S. Supreme Court ruled Wednesday that a state board of dentistry unfairly drove competitors out of business by trying to block non-dentists from providing whitening services. Vince Bucci/Getty Images hide caption

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U.S. Supreme Court police stand on the plaza in front of the courthouse in January. The court heard arguments Monday about whether an American had a right to know why their foreign-national spouse had been refused entry into the country. Jim Watson/AFP/Getty Images hide caption

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The Rev. Charles Perry of Unity Church, in Birmingham, Ala., marries Curtis Stephens, center, and his partner of 30 years, Pat Helms, Monday at the Jefferson County Courthouse. Alabama began issuing marriage licenses to same-sex couples Monday after the U.S. Supreme Court refused to block the marriages in the state. Hal Yeager/AP hide caption

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A demonstrator rallies outside the U.S. Chamber of Commerce against the Supreme Court's decision in favor of Citizens United five years ago. Eight protesters at the Supreme Court were arrested and charged. Nicholas Kamm/AFP/Getty Images hide caption

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Former air marshal Robert MacLean blew the whistle after he was informed that missions on overnight, long-distance flights were being canceled. The announcement came just days after air marshals were warned of terrorist threats. LM Otero/AP hide caption

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