Tech Expert: How to make phone calls online

Tech Expert: How to make phone calls online
What is this VoIP I keep hearing about? Is it some government agency like the FBI? The CIA? The IRS? Should I be worried?
Cost overruns plague U.S. space agency
NASA can land a spacecraft on a peanut-shaped asteroid 150 million miles away, but it doesn't come close to hitting the budget target for building its spacecraft, according to congressional auditors. NASA's top officials know it and even joke about it.