What is the implication of being at FPCON Delta?

FPCON Delta indicates that there is a credible and imminent threat of terrorist action. This level of Force Protection Condition is the most severe and reflects a situation where extraordinary measures are taken due to the increased risk. Under FPCON Delta, military and security personnel are likely to implement specific protocols to secure facilities and protect individuals from potential threats, as the situation has escalated to a critical point.

In contrast, the other choices reflect different levels of preparedness or awareness. For instance, heightened awareness relates more to FPCON Bravo, which involves increased vigilance but does not imply an immediate threat. Standard operational conditions represent a baseline level of security, while increases in regular screening procedures could be a response seen in lower FPCONs as a precautionary measure, not in the face of an imminent threat. Thus, being at FPCON Delta specifically underscores the seriousness of the security situation.