Photos: Besieged Houston braces for more flooding as Harvey lingers

Karen Preston is carried to safety as she evacuates her neighborhood on the outskirts of Houston, Aug. 28, 2017. With record floodwaters devastating much of southeast Texas, more than 450,000 people are likely to seek federal aid in recovering from Harvey, the storm that has battered the Gulf Coast for days, a Federal Emergency Management Agency official said. (Tamir Kalifa / The New York Times)