Protestors in Texas are handcuffing themselves to construction equipment in order to block the XL Keystone Pipeline. The pipeline's developers asked police to get harsh with them. The protestors eventually agreed to remove themselves after they found a combination of pepper spray and tasers unendurably painful.
Is this torture? I don't call it torture unless they're in custody. Personally I'd have preferred to get some hydraulic snippers to chop the handcuffs loose, but I don't think people have a right to expect an official paralysis in the face of a forcible sit-in. I'm trying to imagine if I'd feel differently if, say, the sit-in had been in aid of keeping Elian Gonzalez in the country.