In the 2013 shopping mall assault by terrorists in Nairobi, Kenya, which killed nearly 70 people, one of the gunmen was identified as Hassan Abdi Dhuhulow, a Norwegian citizen who had returned to his native Somalia in 2010.
In its annual terror assessment report today, Norway's intelligence agency didn't identify the countries where Norwegians present a potential terrorist threat, except to say it isn't Syria.
The agency said that the greatest terror threat in Norway comes from extreme Islamists in and around Oslo, but it did not give further details.