Think the US ambassador to Greece might have a tough job? (video)

The US embassy was hit with a smallish explosive and he's apologizing to the Greek people. This says to me that he's worried about this bombing hurting the perception of America in Greece.

Here's a text article in the Greek press which cites the apology: "Ries, in fact, offered an apology to Athens motorists for the surging traffic jam caused by the incident."
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The US supported the Greek Dictatorship of the 1960s -1970s.