Police in Kelheim said on Friday they had arrested a man who hoarded guns, ammunition and bomb-making material in a nuclear-proof family bunker he built fearing an attack by Russia. The 59-year-old electrician had constructed the emergency shelter by expanding and reinforcing the basement of his family home in the small town near Regensburg in Bavaria. Police said they had confiscated two submachine guns, 80 rifles, 60 handguns, 20,000 rounds of ammunition and 40 kilograms of materials to make explosives. …