Of the 73 causes of Leg numbness that we have listed, we have the following prevalence/incidence information: 1  4 causes are very common diseases. 2  3 causes are common diseases. 3  0 causes are uncommon diseases.  0 causes are rare 1  diseases. 8 causes are very rare diseases.  66 causes have no prevalence information.
clandestine - conducted with or marked by hidden aims or methods; clandestine intelligence operations; cloak-and-dagger activities behind enemy lines; hole-and-corner intrigue; secret missions; a secret agent; secret sales of arms; surreptitious mobilization of troops; an undercover investigation; underground resistance.
Espionage is inherently clandestine, and the legitimate holder of the information may change plans or take other countermeasures once it is known that the information is in unauthorized hands.