Harmless Explosives Sought by Military?

Activists must be ready to challenge “alleged” bombs and bomb events especially where no-one is hurt as the work of the military and the police in waging propaganda campaigns to justify their excessive brutality and violence against antiglobalisation activists.

This piece in the New Scientist gives rise to the obvious question - why are the military suddenly interested in searching for harmless explosives?

" It’s a blast Harmless explosives? Whatever will the military want next? Justin Mullins is blown away by researchers looking for a better bang"