They're called power walls—those highly visible shelves behind convenience store cashiers. Tobacco companies pay big bucks to use them ($100 million in Canada in 2005), admitting the walls are their single most effective advertising tool.

Our efforts are directed against species of African origin because these include several notorious pests (such as medfly, Ceratitis capitata), as well as some of the most poorly known ones (species of Dacus feeding on cucurbits).

One screwup and he could be splitting rocks on a chain gang somewhere in Bumfuck, Egypt.

acrophyte