berlin german justice minister heiko maas say place anti-semitism germany demonstrators anger u.s. president donald trump decision recognize jerusalem capital israel burn israeli flag berlin sunday 2,500 people demonstrate berlin trump decision one israeli flag burn police say add investigations 11 people launch one relate flag burn friday hundreds people gather outside u.s. embassy german capital day rage protest police say late twitter detain 10 people protest 12 criminal charge bring include burn israeli flag maas tell bild newspaper monday edition kind anti-semitism attack everyone anti-semitism must never allow place society anti-semitism remain sensitive issue germany 70 years end nazi-era holocaust million jews kill germany regard one israel close ally german foreign minister sigmar gabriel tell bild criticism trump decision understandable people right reason burn israeli flag stir hatred jews question israel right exist say whoever take stand israel also german constitution germany would tolerate gabriel say germany permit peaceful demonstrations would allow conflict people prepare use violence bring germany countries anti-semitism place germany minister say israeli flag burn