For those caught up in the challenges of the new US regulations.....
If you are a green card holder (lawful permanent resident) outside of the U.S. please reach out to an immigration attorney before you travel back to the U.S. even if you are not for one of the seven countries. Nigerian green card holders are advised to return to base immediately until further notice.
If you do plan to travel back to the US on your green card, you should fill out a USCIS G-28 form get it from the USCIS WEB SITE, that officially appoints an attorney to represent you in immigration situations and have that completed form with you as you board your flight.
The refugee program is being halted immediately, for at least 120 days. This will mean that anyone, anywhere in the process, will not move forward.
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Other info:
If you are non-citizen, even green card holders (lawful permanent residents), from one of the seven countries named, and you are ALREADY INSIDE the U.S., plan to DELAY all international travel for at least 90 days. In fact even Nigerians are strongly advised to stay put for now as Trump may be announcing a new set of terror countries and the Two of the most deadly terror groups in the World are Boko Haram and the Fulani Herdsmen so it's likely Nigeria may make the cut in future releases.
IF YOU LEAVE even on a holiday YOU ARE LIKELY TO BE DENIED RE-ENTRY.
If you are a non-citizen from one of the seven countries named, and you are OUTSIDE of the U.S., you will face issues at the airport upon attempting to re-enter the US. In fact you will not be allowed to board any plane destined for the USA anymore.
IF YOU ARE ASKED TO SIGN AN I-407 AT THE AIRPORT OR BORDER DO NOT SIGN IT, ASK FOR THE SUPERVISOR WHO HANDLES LPR ADMISSIONS. If you sign it, you will be giving up your green card.
Please keep looking for updates in the coming days to assess your travel options. If you are facing an emergency at the airport or are returning to the US in the coming days, please have this help numbers on hand (CAIR National: 202.488.8787)
Whether you are a citizen or not, do not permit law enforcement to enter your home without a warrant. Even if they have a warrant, you should consult with an attorney before speaking to them. Get copies of business cards of all law enforcement officials. [Edit: IF YOU CAN. This is not an option for many]

Lalasticlala

Now this is getting really scary, forfeiture of green visa? My fellow Nigerians way dey obodo oyinbo for trump side abeg siddon dia, make una no try even wake pass airport...

hmmmm my folks have the green card and they re currently in Nigeria..I don't see them travelling anytime soon,especially my old man,don't see him leaving his business and rushing back to the States just because of losing his citizenship... odiegwu!

Nigerians wey wan enter America,
Mistake, trumpland, you never chi chum chin.

All hail Trump