The report concluded that Falco remained incompetent, adding "it is unlikely that continued treatment with antipsychotic medication would restore Mr. Falco's competency to stand trial in the foreseeable future."
An earlier evaluation determined Falco was not a danger to himself or others, which means he is not eligible for commitment to a mental institution.
The U.S. Attorney's Office in Kansas City declined to comment on the motion, as did Falco's public defender, Laine Cardarella.
Cardarella said at a hearing earlier this year that based on federal guidelines, Falco likely would be sentenced to less than two years if convicted on both charges. He already has been in federal custody longer than that.
An FBI bomb technician said in an affidavit that Falco's baggage had all the earmarks of an improvised explosive device, including wires and power sources. The agent said he and seven other bomb experts looked at an X-ray photo of the packages and all thought there was a bomb.
A bomb squad later determined there were no explosives.