A Nigerian lawyer, has said that polygamy is the best form of marriage if a man want to live long

[pousinha]

Unfortunately, the practice still continues amongst so-called "Fundamentalist LDS" offshoots to this day.

Doesn't the USA government intervene? As such a practice is forbidden to all ordinary Americans, it's curious a small group to receive a special permission to break the government's laws. It was even more curious in the last centuries until 1890, because the government laws were even more strict and severe (at least, until I know)...

 

[Webster]

Doesn't the USA government intervene?

If its' inside the U.S., yes.
Unfortunately, after the 1890 Revelation many of the fundamentalist Mormons left for either Mexico or Canada.

 

[eLdavis]

Like they say, one man's food is another man's poison, so what works for you might not be the best for the next person.