A growing share of inward investment into the European Union, including but not limited to sovereign wealth funds (SWFs), will come from countries with diverse political regimes with which Europeans may not always see eye-to-eye. The current crisis may increase both Europe's need for such investment and its sensitivity to the non-economic implications. New investor countries have incentives to refrain from political use of their assets, as illustrated by the recently published 'Santiago principles' for transparency and accountability of SWFs. But these incentives are not powerful enough to spare Europe its own assessment of security risks linked to new trends in foreign investment.