Lawmakers, including those who wrote the law requiring their publication, argue the release is insufficient.

The FBI says it recovered a DNA sample from the glove, which was found in a field a few miles from Guthrie's home.

The toxin, epibatidine, can be found in frogs in the wild in South America or manufactured in a lab.

The US accuses the Veronica III of violating a "quarantine" on oil shipments from Venezuela.