Julia Simons's List: Cold Case Discussion

• What it does do, however, is offer encrypted call functionality that is impossible to crack. Manufacturer IntSec claims that the Enigma E2 is the world's most secure phone. When connecting to another Enigma E2, a "Crypto" call uses a second SIM card that sends an authentication code made up of an extremely long number that can't be predicted. There are 10 to the power of 77 possible key combinations, so no "middle man" listening device can intercept a call.

• LinkedIn is a professional network
• LinkedIn’s strength in this market is its “#1 position” as the professional network in the world
• The entire website is designed as an “information rich” system, not a “photo and personal sharing” system liked Facebook and other networks.
• LinkedIn is a magnificently well run company, filling a huge need for professional networking and recruitment.

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• In his landmark 2000 book, "The Tipping Point," for example, writer Malcolm Gladwell says Revere's ride was about connecting so-called weak social ties.
• That's important, because they were crucial to spreading the word. As opposed to Revere's strong social ties, with whom he had frequent and intense communication, weak ties would have been nodes on networks foreign to Revere.
• Facebook and similar networks are set up to promote strong ties, showing updates more frequently from people closest to you, or at least those with whom you interact most often.
• A warning on Facebook would have been stymied by Revere's filter bubble, meaning that the message would have bounced among people already in the know.
• You can rouse more and more-useful responses talking to contacts of your contacts.

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• Before we enrolled with the system, we would spend countless hours achieving what GroupCast can do in 5 minutes.
• In simple terms, telephone broadcast messaging automates your school's dialing process and simultaneously sends your newly recorded information directly to a series of pre-selected phone numbers - all on a moment's notice. That removes the burden of any actual calling from the school facility, and assures you of having your vital messages sent out immediately and correctly.
• telephone broadcast messaging system

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• Remotely piloted aircraft have supplied troops with overhead surveillance as well as the ability to launch precision-guided bombs. Ground robots have also proved their worth, especially in the fight against improvised explosive devices.
• Medium endurance, low-altitude unmanned aerial vehicles have provided the U.S. military with a means to circle over an area of interest for up to one day and keep tabs on suspected insurgents in countries such as Iraq, Afghanistan and Yemen.
• Persistent ‘Wide Area’ Surveillance
• A Predator flies at about 25,000 feet. The Global Hawk, a high-altitude UAV, soars at about 55,000 feet, and can scope out a much wider view of an area of operation.
• Robots That Think for Themselves
• One thing air, land and seaborne robotic systems currently have in common is that there is a human controlling them from a distance.

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• The Global Positioning System (GPS) is a space-based satellite navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.^[1] The system provides critical capabilities to military, civil and commercial users around the world. It is maintained by the United States government and is freely accessible to anyone with a GPS receiver.

• Military[edit]

   
   
   
   
  
   Attaching a GPS guidance kit to a 'dumb' bomb, March 2003.
   
   
   

  As of 2009, military applications of GPS include:

   
   
  • Navigation: GPS allows soldiers to find objectives, even in the dark or in unfamiliar territory, and to coordinate troop and supply movement. In the United States armed forces, commanders use the Commanders Digital Assistant and lower ranks use the Soldier Digital Assistant.^{[75][76][77][78]}
   
  • Target tracking: Various military weapons systems use GPS to track potential ground and air targets before flagging them as hostile.^{[citation needed]} These weapon systems pass target coordinates to precision-guided munitions to allow them to engage targets accurately. Military aircraft, particularly in air-to-ground roles, use GPS to find targets (for example, gun camera video from AH-1 Cobras in Iraq show GPS co-ordinates that can be viewed with specialized software).
   
  • Missile and projectile guidance: GPS allows accurate targeting of various military weapons including ICBMs, cruise missiles, precision-guided munitions and Artillery projectiles. Embedded GPS receivers able to withstand accelerations of 12,000 g or about 118 km/s² have been developed for use in 155 millimetres (6.1 in) howitzers.^[79]
   
  • Search and Rescue: Downed pilots can be located faster if their position is known.
   
  • Reconnaissance: Patrol movement can be managed more closely.
   
  • GPS satellites carry a set of nuclear detonation detectors consisting of an optical sensor (Y-sensor), an X-ray sensor, a dosimeter, and an electromagnetic pulse (EMP) sensor (W-sensor), that form a major portion of the United States Nuclear Detonation Detection System.^[80][81] General William Shelton has stated that this feature may be dropped from future satellites in order to save money.