Yahia Kalash, the head of the journalists union, holds a candle during a vigil on May 24 for the recent victims of an EgyptAir crash. Kalash and two other board members of the journalists union are facing trial on allegations they published false news and harbored journalists wanted by authorities. Amr Nabil/AP hide caption

One of the oldest works in one of the world's oldest libraries is a 9th century Quran written on leather with kufic calligraphy, at the Qarawiyyin Library, in Fez, Morocco. Samia Errazouki/AP hide caption

Egyptian human rights activist Hossam Bahgat (center) leaves a Cairo courtroom on Wednesday after a hearing in which the state requested a travel ban and freeze of his assests. The government has taken action against a number of groups and activists in what crictis say is an attempt to suppress opposition. MOHAMED EL-SHAHED/AFP/Getty Images hide caption

Morocco's King Mohammed VI waves during a ceremony at the royal palace in the capital Rabat in 2014. Following the Arab uprisings of 2011, the king introduced limited changes and a new constitution. But critics say freedom of expression and other rights have been curtailed in recent years. Abdeljalil Bounhar/AP hide caption

Morocco's King Mohammed VI, shown here in November 2015, introduced changes two years ago that have allowed more than 20,000 sub-Saharan Africans to settle in the country. Such a policy is extremely rare in the Arab world. Abdeljalil Bounhar/AP hide caption

Tunisian Olfa Hamrouni points at pictures of her daughters Rahma (above) and Ghofran. The teenage girls were exploited by extremist recruits and left their homeland to join ISIS in neighboring Libya. Leila Fadel/NPR hide caption

Tunisian soldiers patrol the outskirts of Ben Guerdane, in southern Tunisia, on March 8. Islamic State extremists crossed over from nearby Libya on March 7. They were beaten back, but the episode raised concerns that Libya's chaos could spread to Tunisia. AP hide caption