Frontiere sul Messico e Onu

Pastor Aaron Mendes speaks to migrants staying at his AMAR migrant shelter in Nuevo Laredo, Mexico, Wednesday, July 17, 2019. Asylum-seekers grappled to understand what a new U.S. policy that all but eliminates refugee claims by Central Americans and many others meant for their bids to find a better life in America amid a chaos of rumors, confusion and fear. (AP Photo/Marco Ugarte)
Migrant children sleep on a mattress on the floor of the AMAR migrant shelter in Nuevo Laredo, Mexico, Wednesday, July 17, 2019. Asylum-seekers grappled to understand what a new U.S. policy that all but eliminates refugee claims by Central Americans and many others meant for their bids to find a better life in America amid a chaos of rumors, confusion and fear. (AP Photo/Marco Ugarte)
Migrants wait to be taken to the U.S. border to apply for asylum, at the AMAR migrant shelter in Nuevo Laredo, Mexico, Wednesday, July 17, 2019. Asylum-seekers grappled to understand what a new U.S. policy that all but eliminates refugee claims by Central Americans and many others meant for their bids to find a better life in America amid a chaos of rumors, confusion and fear. (AP Photo/Marco Ugarte)
Migrants pack their bags as they wait to be taken to the U.S. border to apply for asylum, at the AMAR migrant shelter in Nuevo Laredo, Mexico, Wednesday, July 17, 2019. Asylum-seekers grappled to understand what a new U.S. policy that all but eliminates refugee claims by Central Americans and many others meant for their bids to find a better life in America amid a chaos of rumors, confusion and fear. (AP Photo/Marco Ugarte)
A migrant woman who was lodging at the AMAR migrant shelter get ready for a trip to the border to apply for asylum in the United States side, from Nuevo Laredo, Mexico, Wednesday, July 17, 2019. Asylum-seekers grappled to understand what a new U.S. policy that all but eliminates refugee claims by Central Americans and many others meant for their bids to find a better life in America amid a chaos of rumors, confusion and fear. (AP Photo/Marco Ugarte)
Migrant children and their families who were lodging at the AMAR migrant shelter, get off the Pastor's vehicle to go to the Mexican immigration office on International Bridge 1, before being taken to apply for asylum on the United States side, in Nuevo Laredo, Mexico, Wednesday, July 17, 2019. Asylum-seekers grappled to understand what a new U.S. policy that all but eliminates refugee claims by Central Americans and many others meant for their bids to find a better life in America amid a chaos of rumors, confusion and fear. (AP Photo/Marco Ugarte)
A United States Customs and Border Protection Officer checks the documents of migrants, before being taken to apply for asylum in the United States, on the International Bridge 1 in Nuevo Laredo, Mexico, Wednesday, July 17, 2019. Asylum-seekers grappled to understand what a new U.S. policy that all but eliminates refugee claims by Central Americans and many others meant for their bids to find a better life in America amid a chaos of rumors, confusion and fear. (AP Photo/Marco Ugarte)i
A security guard leads a group of U.S. asylum-seekers out of Mexican immigration offices after they were returned by U.S. authorities to wait in Mexico under the so-called Remain in Mexico program, in Ciudad Juarez, Mexico, Wednesday, July 17, 2019. Asylum-seekers still waiting to begin the process grappled to understand what a new U.S. policy that all but eliminates refugee claims by Central Americans and many others meant for their bids to find a better life in America. (AP Photo/Christian Chavez)
A security guard leads a group of U.S. asylum-seekers out of Mexican immigration offices after they were returned by U.S. authorities to wait in Mexico under the so-called Remain in Mexico program, in Ciudad Juarez, Mexico, Wednesday, July 17, 2019. Asylum-seekers still waiting to begin the process grappled to understand what a new U.S. policy that all but eliminates refugee claims by Central Americans and many others meant for their bids to find a better life in America.(AP Photo/Christian Chavez)
U.S. asylum-seekers walk from a van into Mexican immigration offices, after they were returned by U.S. authorities to wait in Mexico under the so-called Remain in Mexico program, in Ciudad Juarez, Mexico, Wednesday, July 17, 2019. Asylum-seekers still waiting to begin the process grappled to understand what a new U.S. policy that all but eliminates refugee claims by Central Americans and many others meant for their bids to find a better life in America.(AP Photo/Christian Chavez)
Three migrants who had managed to evade the Mexican National Guard and cross the Rio Grande onto U.S. territory walk along a border wall set back from the geographical border, in El Paso, Texas, as seen from Ciudad Juarez, Mexico, Wednesday, July 17, 2019. Border Patrol agents opened a door in the wall to escort them into a waiting patrol car. It was not clear whether the migrants, already on U.S. soil, would still be able to submit a claim for asylum under a new U.S. policy that went into effect Tuesday.(AP Photo/Christian Chavez)
A Border Patrol agent escorts one of three migrants who had managed to evade Mexican National Guard and cross the Rio Grande onto U.S. territory toward a waiting patrol car, in El Paso, Texas, as seen from Ciudad Juarez, Mexico, Wednesday, July 17, 2019. Under a new U.S. policy that went into effect Tuesday, it was not clear whether the migrants would still be able to submit a claim for asylum after reaching U.S. soil and surrendering to Border Patrol. (AP Photo/Christian Chavez)

L’ONU si è detta “profondamente preoccupata” per le nuove restrizioni imposte dagli Usa in materia di asilo per le persone che arrivano attraverso la frontiera meridionale con il Messico, provenienti spesso da Guatemala, Honduras, El Salvador o Haiti.

Per Filippo Grandi, alla guida dell’Alto commissariato per i rifugiati le nuove misure volute dal presidente Donald Trump mettono in pericolo persone vulnerabili che hanno bisogno di protezione internazionale dalle violenze e dalle persecuzioni e inoltre la misura non rispetta gli obblighi internazionali.

La norma vieta in particolare ai migranti che giungono al confine meridionale di chiedere asilo negli Usa se hanno viaggiato prima in un altro Paese e non hanno cercato di chiedere asilo lì prima di ripartire alla volta del confine americano. Questo – precisa l’Onu – a prescindere se abbiano avuto o meno accesso alla protezione internazionale in quei Paesi di transito.

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