What's the worst that could happen? The border is so far from secure and we will suffer the consequences, but nobody will ever take responsibility for it. NYC is putting immigrants in hotels where non-immigrants can't stay, they get phones, clothes, money & cash cards, they're not prosecuted correctly if at all and if they're released on bond or bail, they disappear. I have watched videos of people nearing the border who were dressed far better than I would expect a refugee, many have a cell phone and if the stated cost of passage through Mexico, Central and South America are true, money is less of a problem than they make it seem, for many.
Can anyone explain why the US isn't allowed to enforce its border laws when the rest of the planet does? Try to sneak into Mexico and see how well that goes- they're more restrictive than the US.
If the Chinese crew didn't want to be recorded, they could have just avoided the camera view, but no, they have to involve the Police and governments. Spying in plain sight, or were they testing the security of the country?