Final answer:
Chemical and Biological weapons can cause targeted harm and their proliferation is addressed by the Chemical Weapons Convention (CWC), which is implemented by the OPCW. The CWC is more comprehensive than the NPT as it mandates the elimination of chemical weapons, but implementation can be complicated by political and technical challenges.
Step-by-step explanation:
Chemical and Biological weapons are often considered scarier than nuclear weapons because they can be very effective at causing harm in more targeted or covert manners, while their impact is still wide-ranging and devastating. Bruce Jentleson highlights the immense resources devoted to the development of such sophisticated weaponry. Chemical weapons, for example, use toxic substances to incapacitate or kill, and they can be engineered to be volatile, spreading rapidly over large areas.
The Chemical Weapons Convention (CWC) is a multilateral treaty that bans the development, production, acquisition, transfer, stockpiling, and use of chemical weapons. It is more far-reaching than the Nuclear Non-Proliferation Treaty (NPT) because it not only aims to prevent the spread of these weapons but also mandates their destruction. The Organisation for the Prohibition of Chemical Weapons (OPCW) is responsible for implementing the CWC and overseeing the destruction of chemical weapons stockpiles.
However, there are factors that impede its use, including political conflict, challenges in verifying compliance, and technological advancements that make detection of chemical weapon use and development more difficult. These impediments affect the OPCW's capability to ensure total adherence to the CWC.