Reply To: New Techeiles Movie

Read the Teshuva, Rav Elyashiv says in regards to the Beis halevi’s reason for not wearing the Radzyner’s techeiles (that if people were dyeing with it since the time we had techeiles it’s as if we have a mesorah that this is not it) ״אנא לא ידענא״ if this טענה applies to the murex techeiles. Which (I think) means he didn’t look into it entirely because it’s known that the Romans banned using the murex dye.