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Three suspected al-Qaeda members arrested in Germany were allegedly working on a bomb to target a crowded area, authorities in the country say.

The suspects - who are of Moroccan and Iranian origin - were said to have been making a shrapnel-laden device before they were detained.

James Denselow, a security analyst, told Al Jazeera's Felicity Barr how the case in Germany underlines the difficulty in striking a balance between civil liberties and security.

Source: Al Jazeera