The banner called for the release of two French journalists from captivity in Afghanistan.
Hervé Ghesquière and Stéphane Taponier were captured December 2009 along with their driver and translator by the Taliban northeast of Kabul.
Since then journalism groups have called for their release. But I have not seen much concern for these and other journalists being held by the general public. (Yes, there have been calls from presidents and foreign ministers but no concentrated effort.)
Nice to see some local support for journalists being held so far from home.