While the US wages the ‘War on Terror’ in the Middle East, it is conducting a terror campaign of its own closer to home. Chemical spraying is being used in Colombia as a deterrent and to destroy ‘illicit’ coca crops. But most people growing coca are poor campesinos with no alternatives to make a living. Whole towns, rivers, livestock and legitimate food crops have been sprayed and livelihoods destroyed by these US-administered fumigation programmes, backed by the Colombian state. Herbicides such as Glyphosate and Cosmo Flux are being used in high concentrations and sprayed from low-flying planes. The effects of heavy exposure to these chemicals on humans is still unknown. As O’Shaughnessy reveals, fumigation doesn’t just harm people – farmers’ livestock are being killed, and much of the area sprayed is rainforest – a fragile environment rich in diversity that is being poisoned by chemicals. This path-breaking book of investigative journalism lifts the veil on fumigation: why is it really happening, and who benefits? O’Shaughnessy travels to the Putumayo and Bolivar departments of Colombia, where most of the spraying takes place, talking to those affected.