Internet in the United States Internet in the United States The Internet in the United States grew out of the ARPANET, a network sponsored by the Advanced Research Projects Agency of the U.S. Department of Defense during the 1960s. The Internet in the United States in turn provided the foundation for the worldwide Internet of today. Internet access in the United States is largely provided by the private sector and is available in a variety of forms, using a variety of technologies, at a wide range of speeds and costs. In 2015, 97.5% of Americans were using the Internet, which ranks the U.S. 4th out
Man-portable air-defense system at least 72 non-state groups have fielded MANPADs. "Portions of this article were taken from "Homeland Security: Protecting Airliners from Terrorist Missiles", CRS Report for Congress RL31741, February 16, 2006 by the Congressional Research Service, division of The Library of Congress which as a work of the Federal Government exists in the public domain." Man-portable air-defense system Man-portable air-defense systems (MANPADS or MPADS) are shoulder-launched surface-to-air missiles (SLSAMs). They are typically guided weapons and are a threat to low-flying aircraft, especially helicopters. MANPADS were developed in the 1940s to provide military ground forces with protection from enemy aircraft. They have