Local offshoots of the Taliban are cropping up across Afghanistan, where the fight against US-led Nato forces is ongoing. One group, calling itself the Salafi, claims it carried out a recent attack on a US armoured vehicle in Afghanistan's Kunar province. In a video sent to Al Jazeera, the group says the attack was done under the command of the Afghan Taliban. Al Jazeera's Kamal Hyder reports.