A National Counterterrorism Center official told senators Wednesday that more effective analysis of the voluminous data available about potential terrorists could require more personnel, but not necessarily major computer upgrades.

At the latest Senate Homeland Security and Governmental Affairs Committee hearing on the Christmas Day airline bombing attempt, Sen. Scott P. Brown , R-Mass., asked what Congress needs to provide to prevent a similar lapse in the future. Obama administration officials have acknowledged the intelligence community failed to piece together clues about the bombing suspect, Umar Farouk Abdulmutallab, in a mountain of information.

“It is partly a resource issue,” said Russell Travers, the deputy director for information sharing and knowledge development at the National Counterterrorism Center (NCTC). “If you want to start exploring more and more of that noise level, then there is a resource issue to it.”

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