In countries like Liberia, greater food security for the rural poor means small-holder yields must go up.

在像利比里亚这样的国家，为农村的贫困人口提供更多的粮食保障，意味着小农的田地也要迈进一步。

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It retrieves the security context from the session object and places it in a temporary placeholder called security context holder.

它从会话对象中检索安全上下文，并将其放置在名为security context holder的临时占位符中。

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IF the session object does not exist, SIF creates a new security context and puts it in the security context holder.

如果不存在会话对象，SIF将创建一个新的安全上下文，并将它放到security context holder中。

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"The new policies proposed by the Task Force will allow us to draw the best personnel from across the government to conduct interrogations that will yield valuable intelligence and strengthen our national security, " Holder said in a written statement.

CNN: Top prosecutor orders probe into interrogations; Obama shifts onus

Earlier in the day, the president met with FBI Director Robert Mueller, Attorney General Eric Holder and Secretary of Homeland Security Janet Napolitano, an administration official said.

CNN: Obama on intel system: 'This was a screw-up'

Obama will meet with FBI Director Robert Mueller, Attorney General Eric Holder, Secretary of Homeland Security Janet Napolitano, CIA Director Leon Panetta and Secretary of State Hillary Clinton, administration officials told CNN.

CNN: UK to tighten airport security after failed bombing