Germany Had Monitored Berlin Truck Attack Suspect for Months

Berlin (AP) -- German officials had deemed the Tunisian man being sought in a manhunt across Europe a threat long before a truck plowed into a Christmas market in Berlin — and even kept him under covert surveillance for six months this year before halting the operation.

Now the international manhunt for Anis Amri — considered the prime suspect in Monday's deadly rampage — is raising questions about how closely German authorities are monitoring the hundreds of known Islamic extremists in the country.