A Ghost?
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Correct Answer
CHARLIE,
I HAVE FOUND MARTIN. HE WAS CAMPED OUT AT A HACKER COLLECTIVE IN OSLO WHICH HE MUST HAVE THOUGHT WAS SAFE, BUT TURNED OUT TO BE A MAJOR ERROR. TO AVOID SUSPICION FROM THE OTHER HACKERS HE HAD TO SPEND A LOT OF TIME ONLINE AND THE NSA WERE WATCHING. ONE OF THE LAPTOPS HE WAS USING HAD BEEN COMPROMISED AND AN AUTOMATED SCAN FLAGGED THE STREAM FOR ANALYSIS. WE HAVE AGENTS ON THE WAY TO INTERVIEW HIM AND I AM HOPING THIS WILL GIVE US ENOUGH TO UNRAVEL THIS MYSTERY.
IN THE MEANTIME, I CALLED IN A FEW FAVOURS WITH THE E-TJENESTEN WHO FOLLOWED MARTIN TO A LOCAL BANK. HE IS CARRYING OUT ALL-CASH TRANSACTIONS IN AN EFFORT TO STAY OFF GRID, WHICH IS A LITTLE IRONIC GIVEN THE WAY WE FOUND HIM. HE IS TRAVELLING UNDER THE NAME JAMES, AND I WONDERED IF THAT WAS A HINT THAT HE STILL HAS FEELINGS FOR JAMELIA, HE IS USING A FAKE PASSPORT WHICH WAS GOOD ENOUGH TO FOOL THE BANK, AND I AM LOOKING FORWARD TO EXAMINING IT AS I AM NOT SURE HOW HE WOULD HAVE OBTAINED ONE OF THIS QUALITY OUTSIDE THE TRADE.
WE HAVE TIED HIS NORWEGIAN TRANSACTIONS TO AN ACCOUNT IN SWITZERLAND, WHICH I GUESS IS NO SURPRISE. WE HAD THE USUAL DIFFICULTIES GETTING ACCESS FROM THE SWISS AUTHORITIES, BUT THINGS ARE A LOT EASIER THERE THAN THEY USED TO BE AND WITH COOPERATION FROM THE FIS I GAINED ACCESS TO A STRONG BOX HELD IN MARTIN’S NEW NAME.
THE ENCLOSED LETTER FROM THAT BOX PROMISES TO SHED LIGHT ON HIS ROLE IN ALL THIS, BUT UNFORTUNATELY IT IS, AGAIN, ENCRYPTED, AND THIS TIME THE CIPHER IS A BIT STRONGER THAN THE ONES WE HAVE BEEN DEALING WITH. I COULD WAIT FOR THE INTERVIEW WITH MARTIN, BUT I HAVE A FEELING THAT THE INTERVIEW WILL GO BETTER IF I KNOW MORE IN ADVANCE, SO I WILL SPEND A LITTLE TIME ANALYSING IT IN THE HOPE OF GETTING A BREAK.
ONE THING THAT PUZZLES ME. THE MANAGER AT THE SWISS BANK MENTIONED THAT THE LAST TIME HE SAW MARTIN IN PERSON HE WAS TRAVELLING WITH A YOUNG WOMAN, AND THE DESCRIPTION SOUNDED A LOT LIKE JAMELIA. I DIDN’T PICK UP ON THIS AT FIRST BECAUSE I ASSUMED THAT THIS WAS PRIOR TO HER DEATH, BUT WHEN I CHECKED THE DATES IT DIDN’T TIE UP. THEY SEEM TO HAVE BEEN AT THE BANK TOGETHER THREE DAYS AFTER JAMELIA’S DEATH.
MORE LATER,
HARRY
A proposal
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Correct Answer
JAMELIA, WHAT DO YOU THINK ABOUT THIS? DO YOU THINK DYNAMIX WOULD FUND IT?
PROPOSAL: LONG BASE LINE SIGNAL NOISE ANALYSIS IN LARGE SCALE HETEROGENEOUS NETWORKS
M. TRAYNOR AND J. DALMAR
ABSTRACT
IN OUR WORK ON SIGNAL NOISE ANALYSIS FOR LIGO WE HAVE DEVELOPED NEW TOOLS FOR DIGITAL ANALYSIS OF EXTREMELY LOW AMPLITUDE SIGNALS IN AN EXCESSIVELY NOISY ENVIRONMENT. THE CLASSICAL FEATURES OF THIS ANALYSIS ARE THE EXPLOITATION OF VERY LONG BASELINE SIGNAL COLLECTION, AND THE SYNTHESIS OF SIGNALS FROM A LARGE SENSOR NETWORK TO FILTER THE NOISE. THE PRINCIPLE NOVEL FEATURE IS THE DEVELOPMENT OF A LARGE DATABASE OF TEMPLATES OF TARGET SIGNALS THAT ALLOW THEM TO BE FILTERED FROM THE NOISE AND INTERPRETED IN REAL TIME. WE BELIEVE THIS APPROACH CAN BE ADAPTED TO A WIDE VARIETY OF SIGNAL HARVESTING PROBLEMS BOTH WITHIN AND OUTSIDE THE PHYSICAL SCIENCES. AS AN EXAMPLE OF A COMMERCIAL APPLICATION OF THE TECHNOLOGY WE HAVE CARRIED OUT ANALYSIS OF A TOY MODEL WHICH SUGGESTS THAT THIS APPROACH MAY BE SENSITIVE ENOUGH TO TRACK INDIVIDUAL FOOTFALL ACROSS A SHOPPING CENTRE OR AIRPORT CONCOURSE AND TO CARRY OUT GAIT ANALYSIS USING SEISMOMETERS EMBEDDED IN THE BUILDING FABRIC. THIS WOULD PROVIDE A NEW AND LESS OBTRUSIVE ALTERNATIVE TO THE CAMERA SYSTEMS CURRENTLY IN USE.
IT HAS NOT ESCAPED OUR ATTENTION THAT THE TEMPLATE BANK APPROACH SHOULD SCALE TO ALLOW TRACKING OF MULTIPLE TARGETS AND TO SEARCH FOR PATTERNS THAT MAY SIGNAL ANTISOCIAL, OR POTENTIALLY EVEN TERRORIST BEHAVIOUR PATTERNS. MORE SPECULATIVELY, THE LONG BASE LINE TECHNIQUES, WHICH ARE KEY TO TRIANGULATING THE SOURCE OF GRAVITATIONAL WAVES, COULD BE MODIFIED TO PROVIDE A TEMPLATE BASED NETWORK ANALYSIS TOOL FOR FINDING LONG RANGE CORRELATIONS IN NETWORK TRAFFIC. THIS ANALYSIS COULD SIGNAL ACTIVITY SPIKES AMONG TRANS-NATIONAL CRIMINAL OR TERRORIST GROUPS TRIGGERING SURVEILLANCE AND TARGETING EARLY INTERVENTION TO PREVENT CRIME.