CIA is one of the best known intelligence network in the world but actually, the NSA (National Security Agency) is the more extensive, secretive and critical intelligence organization in the
A crucial function of a spy is to collect valuable information. And as even beginners know, for the swiftlet farmers; the all important data for them are the critical metrics of temperature, humidity and darkness. The optimum readings in these three variables are: 28-30 Celsius, 85-90 for humidity and 1 to 2 lux for dimness. The sizes of the various inner and outer entrances (which varies due to open roof or dog kennel designs) also affects all three of the variables in allowing fresh air to go in and out of the farm. For the espionage trade, spies are often equipped with the latest gizmos such as equipments for maintaining communications and for recording sensitive information. For the swiftlet business, many farmers simply keep temperature and humidity meters inside their farms to keep track of the conditions inside their farms; one should remember to hang the meter in the middle of the nesting room at the plank area so as to get a more accurate reading. However, many people had since realized that normal meters often give inaccurate readings, this also apply to the meters of normal hygrostats. So one can only get a rough guide to the conditions inside a particular farm. More advanced farmer might obtain a hand held meter reader which use laser to pinpoint the condition in a specific area so as to get a better idea of the specific conditions inside a farm but such readings are only for that particular time of day only. Many technically advanced farmers also installed an equipment known as a data-logger which they placed inside a farm to collect the constantly changing data in terms of temperature and humidity. After a period of time, the data logger would be taken away to be plug into a computer which will then display the range of temperature and humidity over the course of a period inside a farm. In such way, one can keep track of the conditions of a farm and can then modify the conditions if the situation is not ideal. In the end, maintaining an ideal environment will make swiftlets feel welcome to stay; and hopefully to make their nests.