Hiding the homless

Mole people (tunnel people or tunnel dwellers) are homeless people living under large cities in abandoned subway, railroad, flood, sewage tunnels and heating shafts.While it is generally accepted that some homeless people in large cities make use of abandoned underground structures for shelter, urban legends persist that make stronger assertions. These include claims that "mole people" have formed small, ordered societies similar to tribes, numbering up to hundreds, living underground year-round. It has also been suggested that they have developed their own cultural traits and even have electricity by illegal hook-up. The subject has attracted some attention from sociologists but is highly controversial due to a lack of evidence.