Absolutely, I do.
One of the problems that all of the European countries have in terms of a terrorism threat—and that's really what my research was limited to-—is the Shengen visa programs, the free border crossings within European countries, which means that once an individual enters Europe or any one of the Shengen countries, they can travel across borders without really being tracked in any meaningful way whatsoever.
I've done it myself, crossed many borders, and from the time I left London until the time I came back to London I may have visited five, six, or seven countries, and nobody ever knows those things.
Certainly I think that sort of electronic mechanism will be helpful.