Kilroy was here: Athens walls awash in painted squiggles

Kilroy was here, and lots of his friends too. In Athens, illicit spray-painting forays leave an often-indelible mark on the Greek capital's public and private buildings, street signs and bus stops, while public artworks and even ancient ruins are not spared.
Some parts of central Athens are so afflicted with graffiti — largely undecipherable squiggles in bold, broad strokes — that few facades remain untouched and property owners give up on repainting.

Municipal authorities have repeatedly voiced determination to address the problem, with poor results so far. Anti-vandalism laws are rarely enforced and arresting perpetrators doesn't sit high among police priorities.
The ubiquitous but enigmatic squiggles are a fairly recent trend in a city with an old tradition of graffiti which, when not pictorial, consisted of slogans broadly classifiable as soccer-linked,...