Senior FBI and Scotland Yard experts have been dispatched to Greece to train passport officers there in detecting forgery.The officers from Scotland Yard and the FBI briefed 80 Greek police officers and 75 airline staff on how to detect forged travel documents, reported Ekathimerini.The Greek Police said on Thursday that the training took place at Athens International Airport on Wednesday.A large influx of refugees and migrants has put extra pressure on Greek authorities to screen people arriving and leaving the country.