The human rights organization Al-Haq has a piece up saying that the Palestinian Authority has arrested 23-year-old cartoonist Hasan Wa'el 'Abbadi as part of a series of arrests focused on young people and college students. He was presented with a summons on April 8, and presented himself to security forces offices on April 10. I am not familiar with his work at all, although the cartoon at the top of this post is supposedly from the cartoonist, and looks accomplished.