TOPSHOT - A sign offering mobile phone charge in exchange for money is seen at a house near the temporary shelter where Central American migrants, mostly Hondurans, who have trekked for over a month across Central America and Mexico in the hopes of reaching the United States, are staying in in Tijuana, Baja California State, Mexico, near the border with the US, on November 28, 2018. - Members of the Central American migrant caravan are starting to lose hope, and in some cases are turning back after more than a month's trek. Their surprise bid to rush the border en masse on Sunday ended as abruptly as it began, when US Border Patrol agents fired tear gas and rubber bullets to force them back. (Photo by GUILLERMO ARIAS / AFP)