caravans are on the march to the united states. federal authorities here to a potential repeat of last november s chaos near san diego when teargas was used to pry back migrants rushing the border area. thursday border patrol agents were in riot gear on one of the bridges. bridge defenses are being beefed up. part of our preparations include insulation of temporary impediment measures such as conix boxes, concertina wire and jersey barriers. reporter: so far authorities say no caravan members have crossed illegally into the u.s. local leaders credit not just the american show of force but also a new stepped up effort by the mexican government using its military and national police to keep caravan members under control. but processing 1,800 asylum seekers will take months.
i don t like having you on for this reason, but thanks for coming on. here s one of whitney houston s most iconix moments when she sang the national anthem at the super bowl in 1991. oh, say, does that star-spangled banner yet wave o er the land of the free and the home of the brave? [ tom ] we invented the turbine business right here in schenectady.