• Germany said it was considering removing its troops from the Incirlik air base in Turkey after reports suggested that Turkey had blocked a visit by German lawmakers. [Deutsche Welle]

• Milos Zeman, the Czech president, was heard telling President Vladimir Putin of Russia that journalists should be “liquidated.” His office later said that the remark was meant to be a joke. [The New York Times]

• Hungary arrested a wanted German Holocaust denier after he reportedly sought asylum in the country. [The New York Times]

• Twelve people who were conceived with sperm from a Dutch fertility center have filed a lawsuit asserting that its longtime director used his own sperm and is their biological father. [The New York Times]

• A physics institute that opens today in Amman, Jordan, brings together scientists from countries that otherwise rarely talk to one another, including Egypt, Iran and Israel. [The New York Times]

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