This is the best summary I could come up with:

Aaron doesn't feel comfortable showing items traditionally worn by Jewish men in public, either his kippah or his tzitzit, the tassels of his prayer shawl.

For Germany, incidents such as two petrol bombs being thrown towards a Berlin synagogue in October spark acute anxiety due to the nation's Nazi past.

Israel's security is a fundamental cornerstone of German foreign policy with the former chancellor, Angela Merkel, declaring it to be a Staatsräson - reason of state - in 2008.

In a widely viewed video message, Germany's vice-chancellor, Robert Habeck, said that criticism of Israel is "of course allowed" but its right to exist must not be "relativised".

The authorities are investigating reports that black and white banners, which are used by jihadist groups and feature the Islamic statement of faith, were flown at a march in the city of Essen.

"It is problematic when it turns into antisemitic and anti-Israel hate where people shout 'From the river to the sea, Palestine shall be free' - which would deny Israel's right to exist."

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