system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: if ISIL is "heavily recruiting online" like I keep hearing shouldn't it be relatively easy to infiltrate their ranks with undercover agents?
gpt
Infiltrate them? Yes. Infiltrate them in a way that could actually be beneficial and ethical? No. 

ISIS works with a cell structure. If you get recruited, you end up in the lowest level cells. Only the high level cells have any sort of valuable information. The way to work yourself up to these high level cells is to constantly apply yourself to their dogma and prove your worth. You know, by killing people. There is no agency in the world that is going to send their agents to kill lots of innocent people in the hope that maybe some day they end up high enough in the structure to maybe pass on something valuable.