This WSJ article is paywalled. Even if I can resort to hoping that the Internet Archive continues to be allowed to make such content available it is probably not a great idea to promote such walled-garden links.

There is a very good SciAm article explaining Karikó and Weissman's work at the time of their Breakthrough Prize announcement: https://www.scientificamerican.com/article/an-mrna-pioneer-d...