ABC News contributor and former CIA field operative Darrell Blocker discusses what's at play in Iran amid fears of U.S.

'It sends a bad message': Expert on possible gifting of luxury Qatari jet to Trump ABC News contributor and former CIA field operative Darrell Blocker talks about the Trump administration's ...

Trump’s national security team ‘absolutely failed’ using Signal: Former CIA officer ABC News’ Luis Martinez and former CIA field operative Darrell Blocker discuss top national security officials’ use ...

ABC News' Selina Wang and Patrick Reevell are joined by contributor Darrell Blocker for a discussion about what Poland is calling an act of "unprecedented" aggression by Russia. Exclusive: Watch a ...

ABC News contributor and former CIA field operative Darrell Blocker talks about the Trump administration's discussions to accept luxury jet as a gift from Qatar for use as Air Force One. Fox Business ...