Rather, the difficulty in using biological agents probably contributed to their choice of sarin gas instead.
Companies are also working to protect soldiers through the destruction or neutralization of chemical and biological agents.
Castro has access to all the chemical and biological agents necessary to develop germ and chemical weapons.
Precise, tested effects to achieve optimum results when used against weapons or sites containing chemical or biological agents.
CENTERFORSECURITYPOLICY: A Different Approach to Nonproliferation (2005)
Intelligence about some kinds of weapons, notably the biological agents that Syria is believed to have developed, is patchy.
First, most natural forms of biological agents are not highly infectious, and highly infectious seed stock is difficult to obtain.
Some details were already known from a chemical engineer who defected and, in 2000, described an accident involving biological agents.
U.S. officials predicted before the war that at least 100 metric tons of weapon-ready chemical and biological agents would be found.
In particular, causing mass casualties with biological agents presents extraordinary technical and operational challenges to terrorists without assistance from a state.
It can be sprayed or rubbed on equipment, clothing and people that have been exposed to biological agents, including anthrax and smallpox.
Although a Japanese cult-group, Aum Shinrikyo, planned to use biological weapons they actually attempted and failed to disseminate biological agents for terrorist purposes.
There are several points that indicate that the biological agents used are of the more sophisticated kind, and that a state is behind it.
The rooms are designed like upgraded 1950s bomb shelters, with air filters to screen out biological agents, dedicated phone lines, bathrooms and closed-circuit TV systems.
Klabunde is now targeting biological agents like E. coli and anthrax.
The center, which had produced 30, 000 liters of biological agents, including anthrax and botulinum toxins, was destroyed, but the inadequacy of inspections in Iraq was demonstrated.
NPR's David Kestenbaum traveled to Arizona for a look at how the NAU research fits into the larger world of identifying biological agents used in terrorist attacks.
Unlike a search for traces of radioactivity that can be done very quickly, looking for traces of chemical and biological agents can take longer, adding to the risk.
BBC: Syria chemical weapons claims: UK and US tread cautiously
Another need is better diagnostic tests and sensors that can detect and identify biological agents or chemical agents early in a terror attack before there are many casualties.
What the U.S. destroyed is some of the product, biological agents, some fermenters, and some dryers, which can be replaced very easily, and most of them actually through local engineering capability.
Worse still, according to the Iraq Survey Group, Saddam's planning envisioned placing toxic chemical and biological agents in aerosol cans and perfume sprayers for shipment to the United States and Europe.
It was to help the UK to assess the risk of an attack using biological agents by providing important information about their likely dispersion in the open air during the Cold War.
Also on Tuesday, the Defense Intelligence Agency investigated a case of possible biological agents being concealed in mail sent to the agency at its Bolling Air Force Base Headquarters in Washington, D.
With the fundamental tools of genetic manipulation tools that had cost millions of dollars not 10 years earlier dropping precipitously in price, the crowd-sourced design of biological agents was just the next logical step.
FORBES: Hacking the President's DNA: When Synthetic Biology Meets National Security
Since the regime made no appreciable effort to distinguish which contained high explosives and which were loaded with chemical or biological agents, establishing exactly what is in such facilities is a time-consuming and dangerous task.
The UN has never made that list of companies and all the details public, but it's known that chemical precursors for chemical weapons and tubes for missiles and biological agents, including anthrax samples, were sent by American suppliers.
Chemical and biological agents can wipe out entire populations, but first they must be placed in an effective delivery system, such as a bomb or warhead fitted with an aerosol diffuser that will spread its plagues or poisons before the weapon explodes.
This will allow them, for instance, to demand to be shown evidence of what has become of missiles that could be filled with chemical or biological agents, or the stocks of previously uncovered material that might be used to make such weapons.
Altogether lost amidst the much-ballyhooed headlines that the Survey Group discovered "No WMDs" was its uncovering of an inconvenient fact: At the time of the U.S.-led invasion in 2003, Saddam Hussein had active, albeit low-level, production lines for both chemical and biological agents.
In order to reduce the danger of a potential terrorist attack using biological agents, it is necessary to detect rapidly and precisely the deadly microorganisms before they can spread--the average doubling time of a bacterial population is a little over 20 minutes at room temperature.
To be effective deterrents in the future, our nuclear weapons must have greatly increased accuracy, reduced yields, specialized capabilities (such as deep earth penetration) and tailored effects (such as ability to neutralize chemical-biological agents)....In a dangerous world, with many states and organizations committed to acquiring and using nuclear weapons, it would be unwise for the United States not to make our nuclear deterrent force more effective.
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