WASHINGTON - Northrop Grumman said higher sales of surveillance systems helped boost its third-quarter profit 4.7 percent and spurred the defense contractor to raise its 2008 earnings forecast. The company reported net income of $512 million, or $1.51 per share, in the quarter ending Sept. 30, up from $489 million, or $1.41 per share, a year earlier. (Source: AP, 10/22/08)