How could objective "scientists" happily verify that waterboarding isn't torture? They aren't just social observers, they're social agents, with their own motives that deserve careful research.
Just before Canada Day, the CTF slapped a graduation cap and gown on their ubiquitous pig mascot and held a press conference denouncing "wacky" student research projects that receive public funding.
I keep encountering anthropologists (mostly but not only in print) who help more in understanding how the world works today than other experts do, even in their own fields.
Adherence to any one theory of knowledge -- whether intentional or unintentional, postmodern or positivist -- inevitably leads to a fragmented picture that makes one inept at adequate explanation.