US-led efforts to tackle the al-Qaeda group are not regarded as successful, an opinion poll carried out for the BBC World Service suggests.Some 29% of people said the "war on terror" launched by President George W Bush in 2001 had had no effect on the Islamist militant network. According to 30% of those surveyed, US policies have strengthened al-Qaeda.
An opinion poll carried out for the BBC World Service. But on what is this opinion based? The BBC headline is "Al-Qaeda not weakening - BBC Poll".