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“It is long-past due for Congress to take a comprehensive examination of concussions and traumatic brain injuries,\" Murphy said.

Speier says the nation should be worried about the future of children who play physically aggressive sports.

\"This is a chance to shine a bright light on the scientific consensus that the NFL has failed to adequately address,” Speier said. \"If the NFL is as serious about protecting its players as it says, it needs to accept the science and make a real effort to combat CTE,\" Speier said.

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