Transcript for Pentagon Mistakenly Ships Live Anthrax to Labs Across US, Overseas
We begin with the anthrax scare. The deadly biological agent shipped in live forms to nine labs across the country and overseas, too. Nearly two dozen military members may have been exposed. Reporter: Good morning, George. Anthrax is so deadly, it's disturbing such a mistake was somehow made. Today, an urgent effort under way to make sure no one gets sick. This morning, lab workers across the country and U.S. Military personnel insouth Korea are under observation and providing antibiotics after the defense department accidentally shipped live anthrax spores. Labs in nine states potentially affe affected. In South Korea, U.S. Military personnel may have used live anthrax in a training exercise. 22 personnel possibly exposed. Health and research officials have fanned out to the labs to see how the terrible was handled. The anthrax originated at this weapons facility in Utah. The centers for disease control is on the ground there to figure out how this happened. The defense department normally ships live anthrax at high levels of security and safety. In this case, they were shipped at a lower level because the spores were thought to be dead. The nation saw a nightmare that unfolded soon after the 9/11 attacks. Five people killed rkts 17 others infected when letters were sent to media companies and two senate offices in the fall of 2001. It's scary to think that live anthrax was shipped commercially. Such a big mistake. Are they putting new controls in place? Reporter: I'm certain there's a review under way to make sure this never happens again.
This transcript has been automatically generated and may not be 100% accurate.