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Put your questions on south east Asia to a high-profile panel for Global Questions in Phnom Penh
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EU visitors would need permission only to work, study or live long-term in the UK.
UK shale deposits were formed 55 million years too late to trap large amounts of gas, a professor warns.
Four times as many children under 13 were prescribed antidepressants last year as just seven years ago.
The presenter says they are aiming for a broader audience while remaining true to the show's "petrolhead nature".
Boys overtake girls in top A-level grades - but university entries are down, with many places available.
Analysis of six cities finds average season ticket price will increase to £2,840.