One of the many problems with this topic is what information is given to the public. What IS promote in terms of ideology is against a lot of what I believe in. Militant zealous fundamentalism in religion is dangerous, regardless of the religion in question. What IS propose to do needs curtailing.
That said, Saudi Arabia in this case are our allies, but their government have executed more people in the last 6 months than IS have in the last 18 (I will find the link for this later on when I am home) Nations we once saw as an enemy are now our ally in a war against IS. And nobody really knows what IS is, much like Al Quaeda. It is a name of an organisation that is demonised.
Another problem is where did IS get their ammunition, their arms, their training? Many reports have stated the weapons being used are (or were) the property of American forces. How did these end up in the hands of suspected terrorists? Terrorists we are told have been watched for a number of years.
Whilst I agree with the general view that Russell Brand is rather childish, perhaps naive in his conspiracy theory views that he coats with grandiose language, I do sometimes find myself suspicious of the government. Not so much Great Britain but America. The world is capable of accessing the evidence of what they did in South America during the late 70s and 80s. Why wouldn't they behave in a similar way again? Americans took control of world banking, and run mass media world wide. They can manipulate with these sources.
But then again perhaps I've watched Zeitgeist too many times...