Although there's a rough total of reported cases, we don't know how many there have really been, and how often these are serious, because we have little idea how many people have sub-clinical symptoms.

BBC: A scanner to detect terrorists

Although the problem of people sleeping rough on the streets may be easing, the social pathologies of big public housing estates remain entrenched.

ECONOMIST: Tony Blair��s big idea

Although the industry is going through a rough patch commercially, reinsurers are attempting to quantify more carefully their exposure to catastrophe risk.

ECONOMIST: Reinsurance risks