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The five-level color system has been criticized as being vague and ineffective, and alert levels have rarely changed from the yellow ("elevated") and orange ("high") levels. [3] [4] The color-coded Homeland Security Advisory System is the predecessor to the NTAS.
The system was created by Homeland Security Presidential Directive 3 on March 11, 2002, in response to the September 11 attacks.It was meant to provide a "comprehensive and effective means to disseminate information regarding the risk of terrorist acts to federal, state, and local authorities and to the American people."
The International Recommended Transit Corridor (IRTC) is a shipping route through the Gulf of Aden that is patrolled against pirates by international naval forces. The IRTC is 490 nautical miles (910 km) long and 20 nautical miles (37 km) wide.
INFOCON (short for information operations condition) is a threat level system in the United States similar to that of FPCON. It is a defense system based primarily on the status of information systems and is a method used by the military to defend against a computer network attack.
An alert state or state of alert is an indication of the state of readiness of the armed forces for military action or a state against natural disasters, terrorism or military attack. The term frequently used is "on high alert". [ 1 ]
The threat level was reduced in 2022 after the Islamic State group's territorial losses in the Middle East led to fewer investigations of extremists plotting attacks in Australia, he said.
Eruptions at Italy's Mount Etna and the smaller Stromboli volcano spewed hot ash and lava, raising alert levels on the Mediterranean island of Sicily and forcing a temporary shutdown of Catania ...
REDCON-1: Full alert; unit ready to move and fight. WMD alarms and hot loop equipment [2] stowed; OPs pulled in. (A hot loop is a field telephone circuit between the subunits of a company.) All personnel alert and mounted on vehicles; weapons manned. Engines started. Company team is ready to move immediately. REDCON-1.5