Al-Jazeera is reporting that medics treating casualties in a rebel neighborhood in the city of Homs believe that some of the wounded were victims of a poison gas attack. Here's the video. (Warning: The video graphically shows a victim struggling to breathe.) Here's another video with more apparent victims of a gas attack. Seven people have died in Homs after they inhaled a poisonous gas sprayed by government forces in a rebel-held neighbourhood, activists said. Activists also told Al Jazeera that scores of others were affected in al-Bayyada neighbourhood. Side effects reported include nausea, relaxed muscles, blurred vision, and breathing...