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Pittsburgh Penguins' Scott Wilson (23) is blocked by Carolina Hurricanes goalie Cam Ward (30) during the first period of an NHL hockey game in Raleigh, N.C., Friday, Jan. 20, 2017. (AP Photo/Gerry Broome)

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Raindrops bead upon a windshield as a pedestrian walks through rain in downtown Los Angeles, Friday, Jan. 20, 2017. The second in a trio of storms has arrived in California. Rain, heavy at times, is overspreading the state early Friday and a flash flood warning has been issued for southeastern Sonoma County. (AP Photo/Damian Dovarganes)

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Rescue crews search for victims Friday, Jan. 20, 2017 at the El Capitan Canyon campground following flooding due to heavy rains in Gaviota, Calif. Dozens of campers were rescued and evacuated following the morning flood that swept large wooden cabins and vehicles away. (Mike Eliason/Santa Barbara County Fire Department via AP)

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Rescue crews search for victims Friday, Jan. 20, 2017 at the El Capitan Canyon campground following flooding due to heavy rains in Gaviota, Calif. Dozens of campers were rescued and evacuated following the morning flood that swept large wooden cabins and vehicles away. (Mike Eliason/Santa Barbara County Fire Department via AP)

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Rescued campers survey the scene at the El Capitan Canyon campground following flooding due to heavy rains Friday, Jan. 20, 2017 in Gaviota, Calif. Dozens of campers were rescued and evacuated following the morning flood that swept large wooden cabins and vehicles away. (Mike Eliason/Santa Barbara County Fire Department via AP)

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Santa Barbara County Firefighters help rescue victims by transporting them in a tractor on Friday, Jan. 20, 2017 at the El Capitan Canyon campground following flooding due to heavy rains in Gaviota, Calif. Dozens of campers were rescued and evacuated following the morning flood that swept large wooden cabins and vehicles away. (Mike Eliason/Santa Barbara County Fire Department via AP)

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A car turns off Pacific Coast Highway during a downpour in the Pacific Palisades area of Los Angeles, Friday morning, Jan. 20, 2017. The second in a trio of storms has brought rain, heavy at times, over a wide area of California. The National Weather Service has issued a flood advisory for San Luis Obispo County as moderate to heavy rain falls on the Central Coast.(AP Photo/Reed Saxon)

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Commuters take cover from the rain at a bus stop in Los Angeles, Friday, Jan. 20, 2017. The second in a trio of storms has arrived in California. Rain, heavy at times, is overspreading the state early Friday and a flash flood warning has been issued for southeastern Sonoma County. Storm warnings are posted up and down the Sierra Nevada and across the mountains of Southern California. (AP Photo/Damian Dovarganes)

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A woman gets assistance after being pulled from the debris of the hotel that was hit by an avalanche on Wednesday, in Rigopiano, central Italy, Friday, Jan. 20, 2017. With cheers of joy, rescue crews pulled survivors Friday from the debris of an avalanche-crushed hotel in central Italy, boosting spirits two days after the massive snow slide buried around 30 people at the resort. At least two children were among the 10 people found alive. (ANSA via AP)

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A rescue helicopter approaches the area in Rigopiano, central Italy, where a hotel has been buried under an avalanche on Wednesday, to recover some people who have been reportedly extracted alive from the debris, Friday, Jan. 20, 2017. Rescue crews located more than eight people alive in the rubble of an avalanche-crushed hotel on Friday, an incredible discovery that boosted spirits two days after the massive snow slide buried around 30 people in the resort. (Alessandro Di Meo/ANSA via AP)

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A Finance Police helicopter hovers above the town of Farindola, central Italy, Thursday, Jan. 19, 2017. Days of heavy snowfall had knocked out electricity and phone lines in many central Italian towns and hamlets, compounded by four powerful earthquakes that struck the region on Wednesday, and an avalanche which buried a four-star spa hotel near Farindola. (AP Photo/Gregorio Borgia)

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A rescue helicopter approaches the area in Rigopiano, central Italy, where a hotel has been buried under an avalanche on Wednesday, to recover some people who have been reportedly extracted alive from the debris, Friday, Jan. 20, 2017. (AP Photo Gregorio Borgia)

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FILE--In this May 19, 2016, file photo, a boater drifts toward a boat ramp in an area that was once underwater at the Lake Mead National Recreation Area near Las Vegas, Nev. In a new report about an ongoing problem, an advocacy group is trying to project the effects in areas that depend on the Colorado River if the water level continues to fall at drought-stricken Lake Mead. (AP Photo/John Locher, File)

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FILE - In this May 4, 2016 file photo, National Highway Traffic Safety Administration administrator Mark Rosekind speaks during a news conference to announce the addition of tens of millions of Takata air bag inflators to the largest automotive recall in history in Washington. Rosekind, who leaves his job leading the National Highway Traffic Safety Administration on Friday, Jan. 20, 2017, said the agency has taken steps to modernize and change its relationship with automakers so they try to stop problems rather than reacting to deaths and injuries. (AP Photo/Evan Vucci)

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United States' Venus Williams serves to China's Duan Yingying during their third round match at the Australian Open tennis championships in Melbourne, Australia, Friday, Jan. 20, 2017. (AP Photo/Aaron Favila)

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United States' Venus Williams prepares to hit a backhand return to China's Duan Yingying during their third round match at the Australian Open tennis championships in Melbourne, Australia, Friday, Jan. 20, 2017. (AP Photo/Aaron Favila)

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United States' Venus Williams waves to fans after winning over China's Duan Yingying during their third round match at the Australian Open tennis championships in Melbourne, Australia, Friday, Jan. 20, 2017. (AP Photo/Aaron Favila)

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Police and emergency services gather at the scene after a car is believed to have hit pedestrians in Bourke Street Mall in Melbourne, Australia, Friday, Jan. 20, 2017. Several pedestrians were injured after being struck by a car in Australia's second-largest city on Friday, prompting a major police operation as officials told the public to stay away from the area. (Luke Costin/AAP via AP)

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A rescue helicopter approaches the area in Rigopiano, central Italy, where a hotel have been buried under an avalanche on Wednesday, to recover 6 people who have been reportedly extracted alive from the debris, Friday, Jan. 20, 2017. (AP Photo Gregorio Borgia)

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In this photo provided by the University of Hawaii, six carefully selected scientists entered a geodesic dome called Hawaii Space Exploration Analog and Simulation, or HI-SEAS, located 8,200 feet above sea level on Mauna Loa on the island of Hawaii, Thursday, Jan. 19, 2017. The four men and two women moved into their new simulated space home Thursday afternoon, as part of a human-behavior study that could help NASA as it draws up plans for sending astronauts on long missions to Mars. (University of Hawaii via AP)