cyber abilities

Growing power of Chinese cyber facilities is posing a great concern for the United States, the top intelligence official told a Senate panel.

"The Chinese have made a substantial investment in this area, they have a very large organization devoted to it and they're pretty aggressive," Director of National Intelligence James Clapper told the Senate Armed Services Committee.

"This is just another way in which they glean information about us and collect on us for technology purposes, so it's a very formidable concern," he said.