Carli says that one of the most significant things about his study is that it provides new early-warning signs for parents, teachers and mental health-care providers.

卡利说，他的研究中最重要的一点是，它为家长、教师和精神卫生保健提供者提供了新的早期预警信号。

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When he was about 11, he says, a police officer made several visits to his school to give warning of the dangers posed by illicit substances.

他告诉我们当他11岁左右时一位警官曾数次来到他所就读的学校来警告他们这种非法物质的危害。

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Labour says Mr Osborne is a dangerous ideologue, cutting public spending too deeply and ignoring warning signs of an economic slump in stubborn pursuit of what it says is his real goal, a smaller state.

ECONOMIST: Bagehot

Despite Israel's warnings to leave the area, he says he will go back and sleep in his house in Qana tonight, and he has his own warning for Israel.

NPR: Grief and Anger Follow Deadly Qana Bombing