Does radical Islam have more support than we are being told?

We are recurrently being told that Islamist represent only a small fraction of the World's Muslim population. It's undeniable that if radical interpretation of Islam is not the most widespread yet, but there are some signals that can make us think that Islamist terrorism has more support than what they want us to believe.

Last week we witnessed in disbelief how Turkish fans attending the football match Turkey-Greece booed the minute of silence for the Paris attacks victims, some of them crying "Allahu Akbar".



We also know from analysis of tweets that a surprisingly high percentatge of tweets written in arabic in Europe support ISIS:

Of course, selecting tweets written in Arabic language means a bias in the study of the Muslim population of Europe, and these data can not used to characterize all this population, but it is still an horrofying indicator.