For the last couple years during the economic turmoil we have been advising travellers to ignore the news from Athens. The trouble spots can easily be avoided and once you get to the islands everything is peaceful and quiet.
This advice was reinforced yesterday. The news headlines and travel advisories were full of details of the national strike of the major unions including all government employees. So imagine our surprise went we went into Parikia to find everything open including the government offices and even the post office. Banking business was normal and there were ferries coming and going as well as Olympic flights.
Evidently the only direct effect on the islands was ferries leaving the major port of Piraeus and some flights arriving and leaving the Athens airport. We are guessing that the island people, including government workers and union members, realize the damage that demonstrations and strikes are doing to their livelihoods and do not want anything to do with it.
So, again my advice is go ahead and plan your trip to Greece–without a visit to Syntagma Square—and only pay attention to your own flights and ferries. Ignore the alarmist press.