Nearly 10 years ago, a man pleaded guilty to plotting to bomb the New York City subway system. Since then, the al Qaeda-linked defendant has transformed from a would-be terrorist into a highly valuable government witness. https://t.co/qkZvPHOdVq

Nearly 10 years ago, a man pleaded guilty to plotting to bomb the New York City subway system. Since then, the al Qaeda-linked defendant has transformed from a would-be terrorist into a highly valuable government witness. https://t.co/qkZvPHOdVq (via Twitter http://twitter.com/CNN/status/1123824311993761792)