Bahrain has been wracked by unrest over the government's use of torture and use of force to keep the Arab spring uprising "under control" in the country. Human Rights Watch currently describes the situation as "dismal." Because of this, the lavish display of excess and luxury associated with Formula 1 along with the influx of international press tends to spur the populace into greater protest.
Now the protest has spilled over from the streets and on to the internet in the form of an Anonymous DDoS attack on the Bahrain Grand Prix's website. While it was only down briefly, the attack did succeed in garnering the attention of the world media (as it is right now) which we can only assume was the goal.