BP plans to release today its internal investigation of its own role, and any possible wrongdoing or errors by its own officials, in the Deepwater Horizon blowout disaster. Even though some key BP decisionmakers are not talking to federal investigators -- claiming ill health or the Fifth Amendment -- documents describing what they are alleged to have told BP are coming to light. BP would be legally and financially liable for whatever it finds in its self-investigation.

"What does it take to trade in a commodity that cannot be seen or touched - and isn't even a commodity in the United States? First of three parts."

Thousands of people have been ordered to evacuate as a wildfire near Boulder, Colorado, rages on.

"The Interior Department released its new scientific integrity policy last week, but scientists and advocacy groups are miffed at what they view as an incomplete and disingenuous set of rules."

An Arizona Republican operative is recruiting drifters, street people, and the homeless to run as Green Party candidates to dilute the Democrat vote. The Green Party is trying to get them removed from the ballot.

"Bedbugs used to be solely a residential problem, but they are showing up in commercial settings, and not just in places with beds like hotels, nursing homes  and apartment complexes. Increasingly, pest control companies report finding bedbugs in office buildings, movie theaters, clothing stores, food plants, factories and even airplanes. For the affected businesses, the expense can run into the hundreds of thousands of dollars. For the companies that deal with the scourge, it is a bonanza, with business doubling and tripling."

"BP wants the federal government to meet its demand for continued access to oil and gas leases in the United States. If the oil giant can't keep drilling here, its promise to compensate victims of the Deepwater Horizon disaster might go unfulfilled—or so the company claims."

"In May, the company pledged $500 million for critical oil spill science. Then politics and parochialism got in the way."

"Oxygen levels fell significantly in deep-sea areas of the Gulf of Mexico contaminated by oil plumes from the BP spill. But although researchers found a 20% decline in dissolved oxygen, the drop was not steep enough to create biological 'dead zones' that some scientists feared might form in the wake of the BP disaster." Those were the findings of a government study.