Texas county commissioners previously suggested "river calling," an informal phone chain used by summer camps, would be better than installing new flood sirens.

A Texas county rejected siren alert systems in the past due to high costs. But after recent flash floods, state and local officials face renewed questions.

Local officials in one of the hardest-hit counties have still revealed little about what, if any, actions they took to safeguard residents, tourists, and visitors in an area known as “flash flood alley.