Islamic Banks are more Risky...unlike mentioned in this article... However, the real issue is they violate the American Constitution and AIG (Now Owned by the Public) is endorsing one religion over all others. Which is part of the reason they are being sued. The other main problem is the they Sharia laws of ZAKAT require the above as well as funding (8) categories of giving to ONLY Islamic groups, the (7th) being JIHAD or the funding of Islamic Military Operations per the Umdat Al Salik or Sacred Law Manual.
Islamic banks grow as recession impact muted - USATODAY.com