according to experts...despatches programme...not difficult at all......Have you not herad about all the wells around PDL...very easy to vanish a child
As pathfinder said, not easy in the timeline given by the McCanns and friends.
The experts in the despatches programme were hardly going to go in to detail of how one of the McCanns or tapas lot could have been involved were they? I suspect like Colin Sutton, they were asked to come up with likely scenarios for each possible theory ( trafficking, abduction, wandered ) and then the media select what they want to present and some parts not at all.
With the stranger abduction theory we still have the vast problem of that fitting into the timeline given. Just because there are places a child could have been hidden doesn't mean it's likely someone got into 5a, picked up a child and got out between parents coming up and down the road, and then hid the child without anyone noticing at all, no crying Madeleine, no crying twins - all in the short time available.