Aid workers should not only be identified with a national government through the use of a passport. They are apolitical in their work and should be regarded as humanitarian, not nationalist. The execution of David Haines should prompt us to consider how we can enable people to be as safe as possible when working for the U.N. or major charities in the most dangerous places on earth. If we want people to undertake this crucial work, we must also offer them as much protection as possible.

Please can as many people as possible sign this petition to ask Mr Cameron to work with the leaders of other countries to give our aid workers an international identity. Other UK citizens are at risk of execution - how can we protect the people who give most and are at risk of losing their lives? Please sign and share.