In a new interview with Lester Holt, the parents of missing journalist Austin Tice say they have new reason for hope that their son will be found alive in the wake of the collapse of Bashar al-Assad’s regime.

Austin Tice went missing during a reporting trip in Syria in 2012. His release is a top priority for the U.S. government following a rebel group's ouster of Syrian President Bashar al-Assad.

Austin Tice disappeared within the Syrian regime, his brother and sister tell Christiane Amanpour they believe he is still alive and hope for his safe return.