called the migrant protection protocols. this is causing some blowback from immigration advocacy groups. a whole slough of them sent a letter to the mexican president saying that he should stand up to the biden administration if they do reinstate the remain in mexico policy. the letter says in part quote, as a sovereign nation mexico has the right to reject the reinstatement of mpp or any future iteration to this policy that aims to externalize the u.s. border into mexican territory. it is impossible to reimplement mpp in a way that upholds human rights and due process. and mexico has the responsibility to block this detrimental policy. now, it is too early to say, of course, as apprehensions continue right along the mexico border. this video you are looking at now in laredo, texas, too early to say whether if indeed those migrant families are being returned in greater numbers to