When red lines mean nothing and you talk out of both sides of your mouth, world leaders tend to notice and ignore you.
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Washington said Friday it was reviewing its push for a Middle East peace agreement as a spiral of tit-for-tat moves by Israel and the Palestinians took hard-won talks close to collapse.

US Secretary of State John Kerry, who has invested more than a year of intensive shuttle diplomacy in the talks process, said there were “limits” to the time Washington could devote to it.

“This is not open-ended,” Kerry said during a visit to Morocco, adding that it was “reality check” time and he would evaluate with President Barack Obama what Washington does next.

“There are limits to the amount of time and effort that the United States can spend if the parties themselves are unwilling to take constructive steps,” Kerry said.

The US top diplomat spoke to both Israeli and Palestinian leaders on Thursday in a desperate bid to bring the two sides back from the brink.

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