In his book, Hager points out that the interception of satellite communications represents only a small, albeit important, part of the eavesdropping system, for there are also numerous facilities for monitoring microwave and cable links, although these are less well documented and their existence is more difficult to prove, since, unlike ground stations, they are rather inconspicuous.

At the same time, however, only 15% of the world’s population is connected to the global cable network.

1. Heading Nos and apply only to man-made filament tow, consisting of parallel filaments of a uniform length equal to the length of the tow, meeting the following specifications:

This equipment includes cables, sensors, an electronic driver information device, one (two) card reader(s) for the insertion of one or two driver memory card(s), an integrated or separate printer, display instruments, facilities for downloading the data memory, facilities to display or print information on demand and facilities for the input of the places where the daily work period begins and ends;

1. Headings Nos 55.01 and 55.02 apply only to man-made filament tow, consisting of parallel filaments of a uniform length equal to the length of the tow, meeting the following specifications: (a) Length of tow exceeding 2 m;

Annex II A.With the wire ropes tensioned, the wedging beam shall be placed firmly behind the rear wheels and then fixed to the ground.1.2.3.If the tractor is of the articulated type, the point of articulation shall in addition be supported by a wooden block at least 100 mm square and firmly lashed to the ground.1.2.4.The pendulum block shall be pulled back so that the height of its centre of gravity above that at the point of impact is given by one of the following two formulae, to be chosen according to the reference mass of the tractors subjected to the tests:H = 25 + 0,07 mt for tractors with a reference mass of less than 2 000 kilogr ...[+++]ams,H = 125 + 0,02 mt for tractors with a reference mass of more than 2 000 kilograms.The pendulum block must then be released so as to strike the protection structure.1.3.Impact from the side1.3.1.The tractor shall be so placed in relation to the pendulum block that the block will strike the protection structure when the impact face of the weight and the supporting chains or wire ropes are vertical unless, during deflection, the protection structure at the point of contact forms an angle to the vertical.