Digital highlights, March 5th 2011

Too hot to trot
A new survey says only 64% of Americans can be described as physically active. In general, it seems that people who live in cold states are more likely to get their weekly workout than those in sunny Florida. Hawaii, where 70% are energetic, is an honourable exception

Kings of the sky
The monarch butterfly is famed for its migration, with some insects travelling 2,000 miles from breeding grounds in Canada and the United States to a forest west of Mexico City. But, as this video shows, the insect’s survival is under threat from changing weather and deforestation

Appointment in Tripoli
As the world considers how to stem the violence in Libya, we revisit our leader about the American bombing raids in April 1986 that followed a Libyan-sponsored terrorist attack. “The time had arrived to use some kind of force against Colonel Qaddafi,” we reckoned

United States: Defining “overpaid”
In the discussions about the role of unions in Wisconsin, overpaid has become a complicated term

Americas: Haiti’s hallowed hotel
Now run by a Voodoo priest, the resort that Graham Greene made famous in “The Comedians” is amazingly unchanged

Middle East: Tea with The Economist
Richard Dalton, a former British ambassador to Libya, discusses the current crisis

Asia: The 15-minute parliament
Whatever Myanmar’s new MPs are doing, they are not doing very much of it

Asia: Microcreditor in the dock
Bangladesh’s government uses a mandatory-retirement law to banish Muhammad Yunus from Grameen Bank

Business: Such stuff as dreams are made on
Currently the preserve of high-performance cars, carbon fibre could be the future of mass-production carmaking

Finance: Ageing and shopping
A pair of big property deals bet on Americans consuming more as they grow older

Technology: Beating cheating
Computer analysis of candidates’ answers to standardised tests can reveal cheats

Europe: Mr Erdogan goes to Germany...
...and manages to annoy everyone with a speech accusing Germany of seeking to forcibly assimilate its estimated 3m-strong Turkish community

Culture: Jan Gossaert’s renaissance
An exhibition at the National Gallery in London examines an influential Flemish painter who discovered nudes in Italy

Culture: Books of the month
Our books and arts editor discusses the impact of innovation on the world economy, business and government