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17:29
Revisit a 2003 FRONTLINE/World report on the fight against SARS in Hong Kong.

4:30
The resurrection of Pebble Mine.

30:05
Football took a major toll on his body, contributed to as many as 74 surgeries.

28:59
Her father, Junior Seau, committed suicide after playing 19 seasons in the NFL.

35:08
He organized early conferences to educate NFL players about the risk of concussions.

53:50
He became an advocate for retired NFL players after retiring from the New York Giants.

46:53
She was shocked when her husband, who had never had a concussion, was diagnosed with CTE.

53:39
He is convinced he has CTE following his Harvard football days and pro wrestling career.

1:00:40
His autopsy of Steelers legend Mike Webster led to the discovery of a new disease - CTE.

3:38
Abu Mohammad al-Jolani, designated a terrorist by U.S., claims he poses no threat to U.S.

4:41
Leader of Syrian Islamist group claims human rights groups can visit prisons.