re: AP: "Power Line-Breast Cancer Link Questioned"
However, the article does go to show how difficult it can be to nail down the cause for any type of cancer, be it environmental factors or otherwise.
Yes
The problem is how to avoid the "post hoc ergo proper hoc" fallacy
Just because something occurs in conjunction with something else or following it does NOT prove that it was caused by it. Root cause analysis is next to impossible.