Family members tell AC360 the Syrian secret police have detained Syrian activist Zaidoun and his brother Sohaib at a facility known for torture.
Relatives say time is of the essence to free them.
Watch some of Zaidoun's reports here:
Anderson Cooper goes beyond the headlines to tell stories from many points of view, so you can make up your own mind about the news. Tune in weeknights at 8 and 10 ET on CNN.
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