Around the same time the nation was transfixed on the hunt for the Boston Marathon bombers last month, thieves on the other side of the country pulled off a little-noticed heist -- swiping 559 pounds of explosives from a federal storage facility in Montana.
As of Friday, not one ounce of it has been found.
The incident, federal officials believe, was not terrorism-related. But it's the latest to raise security concerns in an age when authorities are warning about the desire of violence-bent terrorists to inflict mass casualties with bombs.
Rep. Steve Daines, Montana's only congressman, told FoxNews.com he's "deeply concerned" about the theft in his state and will be "closely monitoring" the investigation.
The explosives were stolen from a locked U.S. Forest Service bunker near Billings. Thieves took off with various emulsion-type explosives, cast boosters and detonating cord.
Federal officials weren't able to point to why the explosives were taken and have downplayed what could happen if they fall into the wrong hands. Some in the area -- who did not want to be named publicly -- believe the facility might have been looted by local miners or by private forestry-related companies that want to bypass buying the explosives legally.
The news of the lax government standards comes after officials at the University of Texas Medical Branch said a vial containing a virus that can cause hemorrhagic fever went missing from a research facility in Galveston over the weekend.
On Saturday, the Galveston National Laboratory said there was no indication of wrongdoing, but it still could not account for the missing vial at its research facility. The medical branch says the virus, native to Venezuela, is transmitted only through contact with Venezuelan rats. Experts say the disease is not transmitted person-to-person nor is it able to survive in U.S. rodents.
"Rightful liberty is unobstructed action according to our will within limits drawn around us by the equal rights of others. I do not add 'within the limits of the law' because law is often but the tyrant's will, and always so when it violates the rights of the individual." Thomas Jefferson