Two dozen scientists came from around the country to Washington this week to protest political meddling in decisions on endangered species protections, according to The Washington Post: The scientists say political appointees at [the Department of] Interior, or those who report to them, have been altering their reports recommending "critical habitat" preservation to favor industries whose interests conflict with the findings.

Today, Sen. Barbara Boxer (D-CA), in her role as chairwoman of the Senate Environment and Public Works Committee, held a field hearing in Los Angeles on EPA's recent decision to block state action on greenhouse gas emissions. At least 17 states are seeking to adopt vehicle emission regulations to reduce emissions.

In 2007, new regulatory policies and the inability of federal agencies to protect the public made headlines more so than at any time in recent memory. Four themes dominated regulatory policy in 2007: White House influence over agency rulemaking activity and discretion; the inability of the federal government to ensure the safety of imported goods; the influence of industry groups; and the Bush administration's refusal to regulate in the face of overwhelming scientific evidence. Click on these links for a recap of 2007's highlights and lowlights:

• White House Interventions