BERLIN — Authorities in western Germany said Monday they have evidence that tens of thousands of people may have been involved with an online child sex abuse network uncovered last year. The justice minister of North Rhine-Westphalia state, Peter Biesenbach, said that allegations against members of the pedophile ring include possession and distribution of child sex abuse images, and serious abuse. “I didn’t expect, not in the slightest, the extent of child abuse on the net,” Biesenbach told reporters, adding that specialist investigators have so far counted “more than — and I hope you’re sitting down — 30,000 unknown suspected...