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AP - Greece raised euro1.625 billion ($2.28 billion) in an auction of treasury bills Tuesday, though the higher interest rate it has to pay showed investor unease a day after the country's credit rating was downgraded sharply.<br style="clear: both;" /><p><strong>Read more:</strong> <a class="rssreadon" rel="external" title="Greece raises $2.3 billion after rating cut   (AP)" href="http://us.rd.yahoo.com/dailynews/rss/business/*http%3A//news.yahoo.com/s/ap/20110308/ap_on_bi_ge/eu_greece_financial_crisis" target="_blank">http://us.rd.yahoo.com/dailynews/rss/business/*http%3A//news.yahoo.com/s/ap/20110308/ap_on_bi_ge/eu_greece_financial_crisis</a></p>