הרב אשר וייס שליט”א
Harav Asher Weiss Shlita argues against Murex Techeiles. His arguments can be divided into 3 parts:
1. He believes that there is no halachic basis in the arguments presented by Murex supporters, and that all of their arguments are non-halachic in nature, and therefore do not even create a Safek.
2. Not even one of the statements of the Gemara and the Rambam fit with the murex, unless one stretches his imagination.
3. The Sifri, Midrash Rabba, Tanchuma, and Arizal, all clearly indicate that it is not possible for the use of techeiles to return until the days of Moshiach.
We present you with three responses to the above arguments:
Rabbi Binyomin Horowitz explains some of the primary halachic reasoning behind the candidacy of the Murex for techeiles.
Rabbi Chaim Klein in his point by point response, among other things, explains how all of the statements of the Gemara and the Rambam fit perfectly and simply with the Murex.
Rabbi Yisroel Barkin demonstrates that a careful reading of the Sifri, Midrashim, and Arizal shows that they do not imply at all that Techeiles cannot be brought back into use before Moshiach.