York Highway

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Kerry Kennedy, center, approaches Westchester County courthouse with family members Wednesday, Feb. 26, 2014, in White Plains, N.Y. Kennedy testified Wednesday that she did not knowingly take a sleeping pill on the day her Lexus swerved into a tractor-trailer on a suburban New York highway. (AP Photo/Frank Franklin II)

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Kerry Kennedy, center, leaves Westchester County courthouse with family members Wednesday, Feb. 26, 2014, in White Plains, N.Y. Kennedy testified Wednesday that she did not knowingly take a sleeping pill on the day her Lexus swerved into a tractor-trailer on a suburban New York highway. (AP Photo/Frank Franklin II)

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Kerry Kennedy, center, leaves Westchester County courthouse accompanied by family members Wednesday, Feb. 26, 2014, in White Plains, N.Y. Kennedy testified Wednesday that she did not knowingly take a sleeping pill on the day her Lexus swerved into a tractor-trailer on a suburban New York highway. (AP Photo/Frank Franklin II)

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Kerry Kennedy leaves Westchester County courthouse Wednesday, Feb. 26, 2014, in White Plains, N.Y. Kennedy testified Wednesday that she did not knowingly take a sleeping pill on the day her Lexus swerved into a tractor-trailer on a suburban New York highway. (AP Photo/Frank Franklin II)

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Kerry Kennedy, center, leaves Westchester County courthouse with Rory Kennedy, left, Wednesday, Feb. 26, 2014, in White Plains, N.Y. Kennedy testified at her drugged-driving trial Wednesday that she has no memory of swerving and hitting a tractor-trailer on a suburban New York highway and did not realize she was impaired when she got behind the wheel. (AP Photo/Frank Franklin II)

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Kerry Kennedy, center, returns to the Westchester County courthouse with family members Wednesday, Feb. 26, 2014, in White Plains, N.Y. Kennedy testified Wednesday that she did not knowingly take a sleeping pill on the day her Lexus swerved into a tractor-trailer on a suburban New York highway. (AP Photo/Frank Franklin II)

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Kerry Kennedy, center, leaves Westchester County courthouse with Rory Kennedy, left, Wednesday, Feb. 26, 2014, in White Plains, N.Y. Kennedy testified at her drugged-driving trial Wednesday that she has no memory of swerving and hitting a tractor-trailer on a suburban New York highway and did not realize she was impaired when she got behind the wheel. (AP Photo/Frank Franklin II)

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Kerry Kennedy, center, leaves Westchester County courthouse with family Wednesday, Feb. 26, 2014, in White Plains, N.Y. Kennedy testified Wednesday that she did not knowingly take a sleeping pill on the day her Lexus swerved into a tractor-trailer on a suburban New York highway. (AP Photo/Frank Franklin II)

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Kerry Kennedy, center, leaves Westchester County courthouse with family members Wednesday, Feb. 26, 2014, in White Plains, N.Y. Kennedy testified at her drugged-driving trial Wednesday that she has no memory of swerving and hitting a tractor-trailer on a suburban New York highway and did not realize she was impaired when she got behind the wheel. (AP Photo/Frank Franklin II)

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Kerry Kennedy leaves Westchester County courthouse Wednesday, Feb. 26, 2014, in White Plains, N.Y. Kennedy testified at her drugged-driving trial Wednesday that she has no memory of swerving and hitting a tractor-trailer on a suburban New York highway and did not realize she was impaired when she got behind the wheel. (AP Photo/Frank Franklin II)