I am a bit suspicious of the conclusions drawn from the Asch experiment. The subjects are put in a situation in which they are led to believe that one of two things is true: 1) I am unable to tell which line is longer 2) Every other person in this room is unable to tell which line is longer They are reported to have acted upset, which leads one to think they were not wanting it to be (1), but the only other option (they knew of) was (2), which is, in fact, even less plausible.

So, really, in that (very artificial) situation, concluding that they have lost the ability to tell which line is longer, while unlikely, was the least unlikely option. So, they chose to believe (1) over (2).

Their only mistake was in not thinking of the possibility that every other person, including the researcher, was trying to deceive them. That's not at all the conclusion that Asch (and others since) have drawn from it. I believe that study could replicate, but I don't think it means what they say it means.