Heroin with a street value of more than £8.5million has been found hidden inside boxes of fruit and nuts at Heathrow Airport, London, UK.    According to UK Border Force immigration officers, they found about 170kg of heroin hidden in envelopes that were concealed in the walls of a consignment of 630 boxes on the 21st of May and arrested two men, aged 36 and 51 as suspects.                         …