"… ederal agency's research, and the policies they influenced, been different.The Chronicle investigation revealed that two-thirds of the 174 safety studies of land-b …"

"… ng requirement after a reporter briefed his spokeswoman on the findings of The Chronicle's investigation."Secretary LaHood believes that credible, independent rese …"

"… g national expert on research ethics, said it appears from the information The Chronicle gathered that the Pipeline and Hazardous Materials Safety Administration h …"