Linguistic profiling:
An investigation in the US has revealed that
landlords discriminate against callers who sound "black" on the telephone. Investigators
from a nonprofit housing agency found that "black"-sounding callers' messages
are often not returned at all, whereas "white"-sounding callers' calls are
typically returned within hours. A study at Stanford University has shown that
most Americans can identify the race of a caller with great accuracy,
sometimes merely by the sound of how they say "hello".