Ten thousand Muslims are protesting outside Downing Street and the Ministry of Defence against the publication of cartoons depicting Mohammed. The cartoons – which led to the brutal massacre at the French magazine Charlie Hebdo – were described by the group as a “violation of Islamic law”. The crowd held banners saying “Charlie and the abuse factory” and “learn some manners” as they called for the world to observe Muslim blasphemy rules. The group taunted the grieving families and supporters of the murdered Charlie Hebdo journalists by using the “#JeSuisCharlie” hashtag to tweet pictures of the rally. Men and women...