Siege in Syria, Ebola outbreak, tubing tragedy: Monday’s headlines via Twitter

Plus Charlie Sheen tells TV critics: ‘I’m not insane anymore’

<p>In this Sunday, 22 July, 2012 photo a Syrian rebel takes cover after he fires his weapon during clashes with Syrian troops in Idlib, Syria. uly is set to become the bloodiest month of an uprising that activists say has claimed 19,000 lives since it began on March 2011. (AP Photo/Fadi Zaidan)</p>

In this Sunday, 22 July, 2012 photo a Syrian rebel takes cover after he fires his weapon during clashes with Syrian troops in Idlib, Syria. uly is set to become the bloodiest month of an uprising that activists say has claimed 19,000 lives since it began on March 2011. (AP Photo/Fadi Zaidan)