By JUMA KWAYERA
NAIROBI, KENYA: Al-Shabaab, the Islamist militant group that has claimed responsibility for Westgate attack may have succeeded in eliciting the kind of response it needed to mobilise sympathisers in and outside Somalia. But more chilling, a United Nations’ agency reports that Al-Shabaab’s financier and ideological prop, Al- Qaeda, has been rebuilding its cells in East Africa prior to the attack.