Over the past few decades, the EU has allocated agricultural subsidies to Greek farmers. Due to recent discoveries of corruption and overcounting in audits of livestock, the EU is currently witholding subsudies.
In recent weeks, smallpox infections in livetock populations have reached epidemic levels, sparking farmers to protest in highways, airports, ports etc. (This has even lead to a team dropping from Athens IV!)
The current party in power, New Democracy, are a center-right mainstream party. Some of its memebers of cabinet were involved in the scandal.