5/10: Cyber attack impacts a major source of fuel for the east coast. Cloud hangs over this year's Kentucky Derby winner and his trainer.

A cyberattack targets a pipeline that supplies nearly half of the fuel that goes to the East Coast -- and gas prices could go up soon. A series of explosions on a school in Afghanistan on Saturday killed at least 53 people and wounded more than 150. Officials say most of the victims were school girls. An NYPD officer is being hailed as a hero for her quick response to a weekend shooting in Times Square. Congress goes back to work this week, but a fight in the Republican leadership will take center stage. Friday was the busiest day at airports in more than a year. And, a potential scandal rocks the Kentucky Derby -- after this year's winning horse tests positive for drugs. The sport's most decorated trainer tells us how he is defending himself.

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