Translate the following English sentence to French:
"For a long time, we have known about the existence of criminal networks, such as the Chinese Triads, who make huge profits by transporting desperate people to countries that they are led to believe are paradises."
On connaît depuis longtemps l'existence de réseaux criminels, tels les triades chinoises qui font de larges profits en transportant des personnes désespérées vers de prétendus paradis.