Radiation dose rates in the Capitol were measured to be up to 65 times greater than the Environmental Protection Agency standards for radiation protection of the public. There is no controversy about those measurements.
Controversy does exist, however, about what they mean.
The purpose of the study was to point out the absurd position of the EPA and Reid, who supports the application of the EPA standards to the nuclear waste repository at Yucca Mountain in Nevada. What's misleading is the EPA and Reid scaring the public about radiation levels that aren't dangerous.