After Baghdadi: Will Islamic State fighters seek return to al-Qaeda?

The death of Abu Bakr al-Baghdadi and the appointment of a virtually unknown successor could see some fugitive Islamic State group fighters seeking a return to the ranks of al-Qaeda-aligned groups.

Baghdadi died last month during a raid by US special forces on a compound near the village of Barisha in the northwest Syrian province where he appeared to have been hiding under the apparent protection of one such hardline group.

According to reports, the building...