The man accused of scaling a security fence and getting into the White House with a knife is scheduled to have his initial appearance in federal court. Following an embarrassing security breach at the White House, one of the most closely protected buildings in the world, the Secret Service is said to be considering establishing new checkpoints to screen tourists in public... German electronics and engineering company Siemens AG has reached a deal to acquire oilfield equipment maker Dresser-Rand for $7.6 billion.