Germany's main Jewish leader is giving a guarded welcome to a politician's suggestion that everyone living in Germany, including migrants, should be obliged to visit a former Nazi concentration camp at least once.

The suggestion by Sawsan Chebli, a Berlin city government official who is Muslim, came amid concern over anti-Semitism among migrants from Muslim-majority countries. She told Sunday's Bild am Sonntag newspaper that concentration camp visits should become part of integration courses for migrants.

Josef Schuster, the head of Germany's Central Council of Jews, told Deutschlandfunk radio Wednesday the idea is "good in principle" but there are questions over details. He said it wouldn't work simply to summon people to concentration camp visits.

Schuster said well-prepared visits would be "absolutely important" for older schoolchildren and for asylum-seekers.