I can't vouch for all the details in the most technical parts of the paper, but I have read Khare's paper carefully and the overall strategy of the proof is correct. If there were a mistake, I would be surprised if it had not been found already -- this paper is not nearly as complicated as some of the ones to which you refer that didn't pan out.
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I can't vouch for all the details in the most technical parts of the paper, but I have read Khare's paper carefully and the overall strategy of the proof is correct. If there were a mistake, I would be surprised if it had not been found already -- this paper is not nearly as complicated as some of the ones to which you refer that didn't pan out.