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USA Today is reporting that passengers transferring to Heathrow domestic terminal from international flights, and domestic passengers who wish to visit the international lounge before departure will be required to undergo iris scans and be fingerprinted, under new security measures.
The scanning will be done at Terminal 1 and will be used to identify passengers, in addition to their usual photo ID and boarding pass checks. All received data will be destroyed within 24 hours. Domestic flight passengers who don’t wish to visit the international lounge are exempt from the biometric scan.
When the new Terminal 5 opens in March, a similar security system might also be put in place there.