Critical Episode 3.4: Evacuation|
As the first American citizens begin arriving at the embassy, U.S. troops prepare increased evacuee flow. Traffic patterns on the streets leading to the embassy are being monitored and mediated through the checkpoint. Americans are ushered into the embassy, and flown by helicopter to the nearby airport where they will await transfer out of the area.
Traffic in and around the embassy increases gradually but steadily as the U.S. citizens congregate and are directed where to go. Analysis of data from the sensors at the checkpoint coupled with reports from patrols indicates that over the last 24-hour period there has been very little suspicious activity. It is believed that the enemy has abandoned the use of large vehicles because of the checkpoints and their tendency to be searched. By the time this new trend was noticed, almost every truck and large van was stopped and searched. Because the area is becoming more and more crowded the S-2 and analysts are constantly monitoring the sensor readouts, looking for something out of the ordinary.
One afternoon, at a time when traffic is particularly heavy, an analyst notices interesting sensor reporting. At approximately the same time it appears that 3 of the checkpoints are registering vehicles with almost an identical audio signature. His thought is that perhaps the enemy is trying to smuggle hazardous materials at multiple locations simultaneously. The S-2 relays this information to each of the checkpoints and they begin searching every vehicle very thoroughly. In one sedan, some plastic grocery bags containing gunpowder are found. The material is reported back to the headquarters. At another checkpoint, some plastic casings were found that could be used to make explosives.
Realizing that the enemy may have adapted to the security of the general area around the embassy, S-2 recommends that the currently deployed sensors be redeployed into areas that he has identified as new possible locations of infiltration.
One night several sensors detect a possible intrusion. Listening to the accompanying audio clip, the analyst can make out what appears to be a group of males engaged in a non-english conversation. A translator is brought in and can make out only a few words due to the low bandwidth and interference of ambient noise. While the analyst keeps monitoring the sensors, all of a sudden two of them stop responding altogether. Because of the normally low traffic at this time of night, a reaction force is sent to the area. By the time they arrive no persons are found in the immediate area but they see that one sensor has been destroyed and another appears to be missing.
Back at the embassy headquarters another another sensor array detects movement, very similar to the previous one in a nearby area. A quick review of the audio data reveals that the same group of people are in that area. The S-2 contacts the reaction force to alert them about the enemy's new location. They arrive quickly and confront 4 men with partially-completed IEDs. They are apprehended, detained, and questioned. The explosives are confiscated and the area searched for more such threats. Among the confiscated material they find their missing sensor, badly damaged.