A global campaign led by churches and an Islamic center across 15 U.S. states is sending hundreds of solidarity postcards to female Palestinian detainees in Israeli prisons, but Israeli prison authorities are blocking them from being delivered.

Samer and Noura Arbeed dropped their kids off at school and were on their way home when they noticed that they were being followed. As their car stopped, four armed men wearing civilian clothes and holding guns beat Samer, including blows to the neck, and then forced him into their vehicle. After more abuse during interrogation, he now is hospitalized with kidney failure and broken ribs.