Tonight on PBS News Weekend, the search for victims in the Texas Hill countries interrupted by heavy rain as officials warn of a renewed threat of flash flooding.

Then how Russia used Brazil as a launching pad for Vladimir Putin's deep cover operatives around the world.

And from New York to Seattle and across the globe, why some of the world's most populous

cities are slowly sinking.

In a place like Mexico City, up to 20 inches a year of sinking in the United States, it's a little

bit less, but it's still the sort of slow motion

crisis that's a whole year across the country.

Good evening. I'm John Yang. A new round of heavy rains and a renewed threat of flooding in central Texas today

interrupted the search for those still missing from the devastating Fourth of July flash floods.

Ten days after the fast-moving waters of the Guadalupe River swept away homes and vehicles,

the full extent of the human toll is still emerging.

The death toll has risen to nearly 130, with more than 170 people still unaccounted for.

Tony Polkowski is a reporter with the Austin American Statesman and Austin television station KVUE.

Tony, what are conditions like right now and any indication of when the searchers will

be able to get back to work? John, we have had flash flood warnings throughout the region all

afternoon as bands of heavy rain and thunderstorms move through this area. Of course, everyone

is looking to the sky given what happened here about 10 days ago.

But with regard to the rescue, as we know, it was halted earlier this morning due to that

flooding threat, that continued flooding threat. But officials say they are prepared to begin

resuming the search for possible victims of this flooding as early as late today and definitely overnight and first thing tomorrow on Monday.

As that search goes on, is there a possibility that some victims may never be found?

John, that is the grim reality that many families are beginning to confront, given the fact that

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