A man purported to be the reclusive leader of the militant Islamic State Abu Bakr al-Baghdadi has made what would be his first public appearance at a mosque in the centre of Iraq's second city, Mosul, according to a video recording posted on the Internet on July 5, 2014, in this still image taken from video. REUTERS/Social Media Website via Reuters TV
ERBIL, Iraq (Reuters) - It was barely more than a squiggle, but the mark of a single letter sprayed overnight on a wall in the heart of Islamic State's self-proclaimed caliphate was a daring act of dissent.
The next day, ultra-hardline Islamic State fighters came and scrubbed out the "M" -- the first letter of the word for "resistance" in Arabic -- which appeared in an alley near the Grand Mosque in the Iraqi city of Mosul about three weeks ago.
