Want something to worry about? Try this on for size.

Practice saying this:

OH SHIT!

Do it again.

Now go to Global Guerrillas and read the short and very incisive observation made by John Robb. Don't feel like linking out? Allow me:

Fareed Farooqui reports from Pakistan on the effects of a minor electricity outage (unintentionally caused by construction activity and exacerbated by load shedding due to insufficient production of power) in Karachi. Here are some examples:

• Vicious rioting broke out Wednesday evening in several parts of Karachi and continued into the night in protest against long spells of power outages.
• Residents of the affected areas came out on to the streets and burnt tires and other materials. In some areas, the protesters broke traffic lights and damaged fast food restaurants by pelting them with stones. The police resorted to shelling and aerial firing to disperse the crowds.
• Riots also took place in various areas of Lyari Town including Aath Chowk and Shah Baig Lane. Protesters besieged a KESC complaint centre near Aath Chowk, and tried to set it on fire, but the police reached there on time.

Pakistani guerrillas haven't yet (fortunately) adopted systems disruption against Pakistan's crowded cities (Baloch guerrillas have focused on the disruption of regional natural gas deliveries). However, given the example above, it appears that Pakistan's legitimacy is so weak (particularly given recent events) that if they did adopt systems disruption, the returns on investment would be exceptional.

Now, all together, OH SHIT!

If you're not reading Global Guerrillas, you may not understand what constitutes one of the greatest threats in this century.

Don't read it before going to bed. You won't sleep well.