Traders look at their computer screens at a bank in Lisbon September 18, 2013. Portugal's short-term borrowing costs spiked at a bill auction on Wednesday, reflecting an increase in concerns about ... more 
Traders look at their computer screens at a bank in Lisbon September 18, 2013. Portugal's short-term borrowing costs spiked at a bill auction on Wednesday, reflecting an increase in concerns about Lisbon's ability to wean itself off international aid by mid-2014. REUTERS/Jose Manuel Ribeiro (PORTUGAL - Tags: BUSINESS) less 
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Reuters | Photo By JOSE MANUEL RIBEIRO / Reuters
Wed, Sep 18, 2013 6:54 AM EDT