The few small Jewish groups that maintain the practice.
From the red terror to the barren mountains of Sudan.
They risked imprisonment and abuse to bring their people to Israel.
A documentary on Operation Joshua.
The answer might help uncover the origins of Ethiopian Jewry.
The arrival at Ben-Gurion airport of 450 Falash Mura signals the end of a thirty-year campaign that has seen over 90,000 Ethiopian Jews airlifted to Israel.