A freshman Republican lawmaker in the Congress is asking a pair of U.S. House committees to investigate evidence turned over by a possible whistleblower who claims a unit of the National Institute of Standards and Technology spent $34 million over six years for conferences and meetings, including one multi-million dollar gathering a few months ago in Florida.

The Commerce Department sternly disputed the charges leveled by Rep. Sandy Adams (R-FL), with one official saying an official rebuttal would be offered on Wednesday.