The other is to block the electronic path to objectionable material with filtering software.

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Microsoft says it will screen WP7 apps for both technical quality and objectionable material.

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"The government will not allow publication of such objectionable material, " the state-run Associated Press of Pakistan quoted him as saying.

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Instead, flight attendants will follow standard protocol for objectionable material -- they'll ask passengers to stow it away, said Bobbie Egan, an airline spokeswoman.

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Although it is coy about details, the company says it will use software to filter out objectionable material and human reviewers to decide borderline cases.

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It requires distributors to register with the police (but threatens no penalties if they do not) and asks Internet service providers to remove objectionable material voluntarily.

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What separates it from less objectionable material?

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