That stay does not mean green card holders are protected. It means that anyone who was in transit when the order went into effect was allowed entry. So if you

That stay does not mean green card holders are protected. It means that anyone who was in transit when the order went into effect was allowed entry. So if you were on a plane to the US before the order, but landed after it, and were detained with the threat of being sent back, you can stay. It does _not_ mean that visa holders, including those with green cards, can travel back to the US in the next 90.