"There are 60 public cases. That is the tip of the iceberg, we feel, however, because many cases do not dare go public because they're hoping they can be resolved," said Diane Foley, who founded the James W. Foley Legacy Foundation after her son was killed in 2014 by the Islamic State group in Syria.
Brittney Griner release comes with doubts about swap for 'Merchant of Death,' plight of Paul Whelan
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