they are however handicapped by a shortage of talent : the kind of person who can travel is not usually the kind of person who sympathizes with the patriotic discipline of the pcf and rogue masonic groups , but some of these end up defecting and doubling , and anyway most of them are much too weird for the taste of the rigidly reactionary inner core of pcf leadership , who wonder ( as does balcombe ) whether these agents are any better than the scum theyre spying on ?