Here's the original link to the memorandum, which is dated 25 January 2017.

Here's my local mirror of the same document.

Takeaways:

• "It implements new policy designed to deter illegal immigration and facilitate the detection. apprehension. detention. and removal of aliens who have no lawful authority to enter or remain in the United States."
• "Additional agents are needed to ensure operational control of the border. Accordingly, the Commissioner of CBP shall immediately begin the process of hiring 5,000 additional Border Patrol agents and to take all actions necessary to ensure that such agents enter on duty and are assigned …