This is the 12035th most frequent French word.
traitent
"Traitent" means "they treat" or "they deal with."
Here, 'traitent' means 'to handle' or 'to process' related to how journalists deal with information.
Les journalistes traitent l'information avec soin.
The journalists handle the information carefully.
In this case, 'traitent' is used to mean 'to finish' or 'process' referring to students working on their assignments.
Les étudiants traitent souvent leur devoir tard le soir.
The students often finish their homework late at night.
Here, 'traitent' refers to 'treating' or 'dealing with' customers with a particular manner.