Video calls for attacks on Western shoppers
Somalia's al-Shabab says malls in the US, Britain and Canada could be targets

US homeland security chief Jeh Johnson urged shoppers to be on their guard after an Islamic militant group posted a propaganda video calling for attacks by radicalised Muslims on Western malls, including the Mall of America.
"I would say that if anyone is planning to go to the Mall of America today, they've got to be particularly careful," Johnson said yesterday on CNN's State of the Union.
The mall, located in Minnesota and reputedly the world's largest with 40 million visitors a year, said it had taken extra security measures in response to the threat by al-Shabab, a Somalia-based insurgent group.
Al-Shabab carried out a bloody attack and takeover of a mall in Nairobi in September 2013 that killed at least 67 people.
In a video posted on the internet, the group ran a documentary-style account of the Westgate Mall attack, followed by an appearance by a masked fighter who suggested similar attacks could be carried out on other shopping centres in the United States, Canada and Britain.
They included Oxford Street and two Westfield malls in London, and Canada's West Edmonton Mall.