Britain reviewing risks to its satellite-reliant infrastructure

Britain is reviewing its reliance on satellite-based technology for critical infrastructure including the Global Positioning System (GPS) as the threat of jamming attacks and disruptions grows, a government report said on Tuesday.Emergency services, transport, communications and financial networks are among key sectors which depend on Global Navigation Satellite Systems (GNSS) such as GPS.Experts say the problem with GNSS is their weak signals, which are transmitted from 12,500 miles (20,100 km)