If access is gained to a car's internal controller area network, it is possible to disable the brakes and turn the steering wheel. Computerized engine timing, cruise control, anti-lock brakes, seat belt tensioners, door locks, airbags and advanced driver assistance systems make these disruptions possible, and self-driving cars go even further. Connected cars may use wifi and bluetooth to communicate with onboard consumer devices, and the cell phone network to contact concierge and emergency assistance services or get navigational or entertainment information; each of these networks is a potential entry point for malware or an attacker. Researchers in 2011 were even able to use a malicious compact disc in a car's stereo system as a successful attack vector, and cars with built-in voice recognition or remote assistance features have onboard microphones which could be used for eavesdropping.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What did researchers use to prevent attacks in 2011?
Ah, so.. unanswerable

After being lit at the birthplace of the Olympic Games in Olympia, Greece on March 24, the torch traveled to the Panathinaiko Stadium in Athens, and then to Beijing, arriving on March 31. From Beijing, the torch was following a route passing through six continents. The torch has visited cities along the Silk Road, symbolizing ancient links between China and the rest of the world. The relay also included an ascent with the flame to the top of Mount Everest on the border of Nepal and Tibet, China from the Chinese side, which was closed specially for the event.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When did the Olympic torch reach Beijing?
Ah, so.. March 31

In 1860, Montevideo had 57,913 inhabitants including a number of people of African origin who had been brought as slaves and had gained their freedom around the middle of the century. By 1880, the population had quadrupled, mainly because of the great European immigration. In 1908, its population had grown massively to 309,331 inhabitants. In the course of the 20th century the city continued to receive large numbers of European immigrants, especially Spanish and Italian, followed by French, Germans or Dutch, English or Irish, Polish, Greek, Hungarians, Russians, Croats, Lebanese, Armenians, and Jews of various origins. The last wave of immigrants occurred between 1945 and 1955.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): The population quadrupled by 1880 due mainly to what?
Ah, so..
the great European immigration