If you are planning an international trip you need to take note of this! Due to the impending risk of a terrorist attack, the U.S. have issued a new rule to specific airports worldwide that electronic devices must be able to be switched on for security checks. They suspect that electronic devices may be used as bombs and require travellers to power on devices at the various security checks – even if they have only just purchased the device.

A spokeswoman for Heathrow said that it did not comment on security matters.

But the BBC understands that passengers flying to the US will be advised to remove relevant chargers from their hold luggage at check-in, so that they can top up carried-on gadgets if necessary. Alternatively, they can opt to place any powered-down kit in their stowed luggage.

If they still arrive at the security point with a powerless device, they will be directed to a nearby retailer that might be able to provide a recharging cable, and told of the location of airport charging points.

If the traveller is still unable to power on their machine, it will be suggested they make use of MailandFly – an existing service offered by the firm Bagport, which is based at Heathrow’s security control.

If passengers whose devices are out of juice do not want to take this option (or if it is not available at other airports) the airline will have to decide what happens to the device.

This is a massive amount of admin for a very simple thing so folks, for your own sanity, please travel with your charger in your hand-luggage and make sure your phone is juiced up before you go through security!

For more info on this and other increased security measures check out BBC and NBC News.