On 15-Nov-17 12:11 PM, harry wrote:
....
And not to sit next to some"Asian" on the tube.

Suicide bombers can come from any ethnic group and those who don't meet
your preconceptions are going to be preferred for an attack on the tube.
They don't all have recently shaved beards and sit there mumbling prayers.

Much better to avoid anybody who looks nervous, stares straight ahead,
licks their lips a lot, walks strangely, keeps their hands in their
pockets, takes shallow breaths etc.

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Colin Bignell