mohamed idris runs araha, the american relief agency for the horn of africa, based in minneapolis. >>it is estimated about $1.3 billion are the... the amount of money that come on an annual basis to somalia from somalis in diaspora. so, the remittance is the lifeline, is the backbone for somalia. >> reporter: but now, the $215 million that flow from the somali diaspora in the u.s. each year may be in jeopardy. the u.s. government is increasingly concerned some of those remittances are going to terror groups that have taken hold in muslim-majority somalia particularly al shabaab, an al qaeda-linked organization behind an assault on a kenyan university this april that killed more than 140 people and an attack on a kenyan mall two years ago that killed 67. adam szubin is the u.s. treasury department's acting under secretary for terrorism and financial intelligence. >> any time you're talking about funds transfer mechanisms-- whether it's wires, whether it's the baking system-- any funds transfer can be exploited by bad actors, including terrorist groups. and obviously, when you're talkin