It is also international news:
If this becomes a long lasting strike it will affect a lot of seafarers onboard ships stuck at anchor off US ports, maybe for weeks.
PS> Just out of curiosity; why does US unions like to put “International” in their name? Are there anything International with “The International Longshoremen’s Association (ILA)” or any of the many other unions listed here: List of labor unions in the United States - Wikipedia