The number of people on the government no-fly list has almost doubled since the attempted Christmas day bombing on an airliner near Detroit.Lawmakers and security officials in Washington discussing the lessons learned from the attack...and what they're doing to prevent it from happening again.Fox's Chris Foster reports.ACCORDING TO INTELLIGENCE OFFICIALS -- IN JUST OVER TWO MONTHS -- THE NUMBER OF SUSPECTED TERRORISTS BANNED FROM FLYING ON U-S PLANES HAS BALLOONED FROM ABOUT *THIRTY-FOUR-HUNDRED (3,400)...TO *SIX-THOUSAND (6,000)...THIS AFTER *ALLEGED* WOULD-BE BOMBER UMAR FAROUK ABDULMUTALLAB TRIED TO BLOW UP A PLANE ENROUTE TO DETROIT ON CHRISTMAS DAY.SECURITY OFFICIALS TELLING LAWMAKERS AT A SENATE INTELLIGENCE HEARING... THERE WASN'T A FAILURE TO COLLECT INFORMATION... OR SHARE IT... BUT RATHER A FAILURE TO PROPERLY *ANALYZE* THE INFORMATION.OFFICIALS GIVING EXAMPLES OF TWO KEY PIECES RELATED TO ABDULMUTALLAB THAT WERE OVERLOOKED...HIS TRAVELS TO YEMEN AND WARNINGS FROM THE SUSPECT'S OWN FATHER THAT HIS SON HAD EXTREMIST TIES.LIEBERMAN says: "All those dots were on the same table but our government was unable to connect them."COLLINS says "Until systems work more effectively..work more seamlessly...we will not be able to prevent terrorists from traveling to our nation."INTELLIGENCE OFFICIALS SAY THE NO-FLY LIST WAS EXPANDED TO INCLUDE PEOPLE ASSOCIATED WITH ABDULMUTALLAB...AND OTHERS CONNECTED AL-QAEDA'S YEMEN BRANCH.OFFICIALS WITH THE F-B-I AND TRANSPORTATION SECURITY ADMINISTRATION -- OR T-S-A -- SAYING IMPROVING THEIR ANALYSIS TECHNIQUES IS *KEY*TRAVERS says: "12/25 highlights a long standing and very difficult problem, how you id and integrate fragmented info when it's not blinking bright red."SECURITY OFFICIALS SAY THIS WILL NOT BE AN EASY TASK...SINCE THE AMOUNT OF INFORMATION THEY GET IN A SINGLE DAY CAN BE MASSIVE... MATCHING THE AMOUNT OF INFORMATION IN THE LIBRARY OF CONGRESS.