What would you do?

My husband and I are at an impasse... We live in the US. He is from Argentina and wants to take our 3 and 1 year old there (or 4 and 2 year old, depending on when the trip actually takes place). Most of his family lives there and it would be our kids' first time going there and meeting most of the family.

Although I have been before, I'll be unable to go for the foreseeable future due to health issues.

I would like him to leave the kids home with me. I am concerned about safety in general in that country. I'm concerned about the kids being around the pool at their grandparents' house. I'm concerned that the children will not be in car seats on this trip. (While technically required, people don't really use car seats there.) My husband is a wonderful and responsible father, but I just don't think that one adult can safely take two kids this age on a trip that will require 3 flights and 48-72 hours door-to-door.

My husband feels that there are no valid safety concerns... He will watch the children carefully, take all precautions, etc. He doesn't think Argentina is any less safe than where we live. And he wants to take the kids to visit his family. He says they "need" to get to know their family. We disagree on "need" and if it "needs" to be at this age.

Side note: While I would love to have our kids have a relationship with their grandparents and cousins, I don't want to compromise my safety concerns for very little potential relationship. They'll never see much of each other and it's very possible that they will never speak the same language. Also, with the exception of my husband's parents, no other family members have ever come to visit us. So even if we let our kids go as much as possible (financially, this would be every 2-3 years), it wouldn't be enough for much of a relationship. It's a two-way street and I don't want to compromise my safety concerns when they haven't shown any interest in coming here.

At the end of the day, there's nothing he can say or do to make me feel like it is safe for my kids to go to Argentina. And there's nothing I can say to make him reconsider taking the kids. And the bottom line is that we both feel like we are "right," and there doesn't seem to be a solution/compromise we can both feel good about.

Any ideas? How do you handle it when you get to an impasse with your partner on an issue you both feel very strongly about and no solution seems possible where both people get their needs met?