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Last year’s legislative effort in Congress stumbled over the issue of what authority Homeland Security should have over computer security standards in the private sector.

A bipartisan Senate bill would have given Homeland Security the power to impose cybersecurity standards on the computer networks for vital private sector industries such as oil and gas.

The U.S. Chamber of Commerce, other business lobbies and Senate Republicans fiercely oppose the plan, pointing to Homeland Security’s troubled history in regulating security in the one sector for which it already has responsibility — the chemical industry.

The orders are slated to be unveiled at a special event Wednesday at the Commerce Department.

White House cybersecurity policy chief Michael Daniel and Air Force Gen. Keith B. Alexander, commander of the U.S. military’s Cyber Command and director of the super-secret National Security Agency, will appear with Deputy Commerce Secretary Rebecca M. Blank, Deputy Homeland Security Secretary Jane Holl Lute, and Deputy Attorney General James M. Cole.