Earlier this week there was the case of Solyndra, the hi-tech solar panel manufacturer that went bust last month, despite receiving more than $500m in federal loan guarantees. Yesterday it was the turn of LightSquared, mired controversy over its use of satellite frequencies for a national 4G mobile network, which critics say could disrupt the Global Positioning System (GPS) that operates millions of navigation devices, including those used by the US military and for hurricane and tornado tracking. LightSquared's plans have been opposed by GPS users, including an industry group named Coalition to Save Our GPS, whose members include consumer...