Al-Shabaab avoids most direct confrontations with conventional armies.
The prime minister, who warned of a "generational struggle" against a "poisonous and extremist ideology" that will last for the rest of his political lifetime, wrote: "I agree that we should avoid sending armies to fight or occupy.
As the software improves, these astroturf armies will become increasingly difficult to spot, and the future of open debate online could become increasingly perilous.
As reported by the Guardian, some big companies now use sophisticated "persona management software" to create armies of virtual astroturfers, complete with fake IP addresses, non-political interests and online histories.
She was used to Hollywood and its armies of assistants, technicians and studios.
With the Hobbit, Smaug's final tally of £42.92m was a big drop on Unexpected Journey's £52.33m, so backers New Line/Warners will be hoping that Five Armies will follow the pattern set by Lord of the Rings and bounce back from the Smaug number.
But it's always worth reminding ourselves that today's Isis triggermen and their paymasters are responsible for whom they slaughter and why, just as Blair, Bush and their armies were for their mistakes (sometimes crimes).
Artaud wrote For an End to the Judgment of God in 1947, his health shattered by years in mental hospitals and dozens of electric shock treatments, looking ahead to 50 years of American armies trampling across the globe.
It is the biggest exercise of its kind since the Gulf war, an ambiguous coincidence for a region where the presence of "infidel" armies has become a hypersensitive issue since September 11.
The battalion commander, Semyon Semenchenko, a 40-year-old from Donetsk with a degree in film-making, insisted that he and all his men had combat experience, from the Ukrainian or Soviet armies.
While 20th-century censorship worked mostly by suppressing the information supply, in our own age armies of volunteer piece-workers such as China's "50 cent party" are paid to obfuscate hot issues by incessant and irrelevant blogging.
