BERLIN — Anti-Islam activists have staged an hour-long demonstration atop Berlin’s Brandenburg Gate. Anti-Islam activists have staged an hour-long demonstration atop Berlins Brandenburg Gate Saturday Aug. 27, 2016. The protesters unfurled a banner calling for secure borders in Germany. Police said 15 people were briefly detained over the protest and are likely to face charges of trespassing, harassment and breaching laws on public assembly Banner reads : Secure Borders – Secure Future. (AP Photo Frank Jordans) The protesters unfurled a banner Saturday calling for “secure borders” in Germany as crowds of tourists milled around the iconic monument. Police said 15 people were briefly detained over the protest and are likely to face charges of trespassing, harassment, and breaching laws on public assembly. Berlin police spokeswoman Patricia Braemer said the protesters belonged to the Identitarian Movement. Germany’s domestic intelligence agency said this month it was putting the far-right group under observation [...]