FBI Executive Assistant Director for Science and Technology Amy Hess (from left) testifies on encryption Tuesday before a House panel, alongside the New York City Police Department's Thomas Galati and Indiana State Police Office Capt. Charles Cohen. Manuel Balce Ceneta/AP hide caption

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The official FBI seal is seen on an iPhone camera screen outside the agency's headquarters. With help from a third party, the FBI managed to unlock the iPhone used by one of San Bernardino shooters. Chip Somodevilla/Getty Images hide caption

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The Next Apple-FBI Question: Who Can Know How The iPhone Was Hacked?
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Senate Intelligence Committee Vice Chairman Dianne Feinstein, D-Calif., and Chairman Richard Burr, R-N.C., have introduced encryption legislation. Alex Brandon/AP hide caption

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The Next Encryption Battleground: Congress
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Prosecutor Cody Hiland speaks at a news conference in Conway, Ark., on Aug. 7, after two teenagers were charged in the murders of Robert and Patricia Cogdell. On Wednesday, the FBI agreed to help the Faulkner County prosecutor get access to an iPhone and iPod that belonged to the suspects. Danny Johnston/AP hide caption

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Brittney Mills (center) stands with her mother, Barbara (left), and a family friend at her baby shower days before Brittney was killed. Aarti Shahani/NPR; Original photo courtesy of Barbara Mills hide caption

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Mom Asks: Who Will Unlock Murdered Daughter's iPhone?
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A protester supporting Apple in its battle against the FBI holds up an iPhone that reads "No Entry" outside an Apple store in New York on Feb. 23. Bryan Thomas/Getty Images hide caption

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Apple Vs. The FBI: The Unanswered Questions And Unsettled Issues
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A customer tries out a new iPhone at an Apple store in Chicago. The FBI is working with a "third party" to test a method of seeing what's inside the iPhone used by one of the San Bernardino shooters without Apple's help. Kiichiro Sato/AP hide caption

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A pedestrian walks by an Apple store in New York City on Feb. 23. Protesters demonstrated against the FBI's efforts to require the company to make it easier to unlock the encrypted iPhone used by Syed Rizwan Farook. Julie Jacobson/AP hide caption

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From Reagan's Cyber Plan To Apple Vs. FBI: 'Everything Is Up For Grabs'
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Apple CEO Tim Cook introduces the latest version of the iPhone on Monday in Cupertino, Calif. The company's legal fight with the FBI may be at an end, or at least a detente, if a third party's suggestion lets the agency hack into the San Bernardino shooters' encrypted iPhone. Marcio Jose Sanchez/AP hide caption

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The 227-year-old law at the center of the Apple-FBI debate has withstood several challenges, including at the Supreme Court. Xinhua News Agency/Getty Images hide caption

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How A Gambling Case Does, And Doesn't, Apply To The iPhone Debate
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Seats are reserved for Apple and FBI at a House Judiciary Committee hearing this month. Apple and the government are fighting over whether the company needs to make it possible for investigators to read data on the encrypted iPhone used by San Bernardino shooter Syed Rizwan Farook. Drew Angerer/Getty Images hide caption

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The FBI wants to access data on a password-protected phone used by one of the San Bernardino shooters. Mandel Ngan/AFP/Getty Images hide caption

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This photo taken from an FBI video shows Robert "LaVoy" Finicum during a confrontation with police on Jan. 26. On Tuesday, authorities said police were justified in killing Finicum. AP hide caption

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FBI Director James Comey told a congressional hearing on March 1, that encryption was creating "warrantproof" devices. Jose Luis Magana/AP hide caption

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How A Foiled Robbery Sheds Light On Apple's Clash With The FBI
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