But Los Angeles Police Criminalist Susan Brockbank said "the point of doing a hair comparision is looking at a known sample to get a "range of characteristics... and then comparing that questioned hair to it.

CNN: June transcripts arranged by date.

Half these genomes will be Chinese, but the institute's researchers intend to sample the full geographical range of humanity.

ECONOMIST: The next advances in genomics may happen in China

The best estimate from the Office of National Statistics is of 100, 000 Scots aged between 16 and 24 looking for work, but that's based on a sample with quite a wide range of error.

BBC: No longer the poor relation

The unemployment rate is derived from a separate survey of households, which has an even smaller sample size and thus a wider confidence range.

FORBES: The Jobs Report: How It's Made, What It Means