reporter: joanna williams serves migrants in nogales mexico. what s interesting in the last couple months as it actually hasn t been that busy here and in the sector the numbers have been going down. the timing of this order is, therefore, purely political. reporter: you been here since october of last year? people like pedro solis wait eight months for an appointment to ask for asylum using a u.s. government app, with no luck, many giving up. so the problem right now isn t that people don t want to use the cbp one app, they are applying for an appointment every single day. but there aren t enough of appointments available. and again, this order doesn t increase that number of appointment availability at all. reporter: what is the consequence of deterrent policies from where you stand? policies have been in effect for over 20 years here at the border and what they lead to is an increase in deaths. there are other option is to try to go out into the desert and avoid border p