Heavy planes: Hawaiian Airlines has been given permission to continue allocating seats on some of its planes according to its passengers’ weight. The airline introduced the policy on flights from Honolulu to American Samoa, after noticing that these were burning more fuel than projected; a survey then revealed that passengers on that route were – with luggage – typically 13.6kg heavier than those on other routes. As a result, the airline stopped letting passengers select their seats, and instead allocated them at check in, so their weight could be evenly distributed. This led to charges of discrimination, as the policy only applied to flights to American Samoa (where at least 74% of adults are obese). Last week, however, transport officials cleared the airline, saying its safety concerns were valid.