Yes, water is a liquid
“TSA has banned most fluids at airport security checkpoints for nearly a year because of concern about possible liquid explosives.
“I was distraught. I opened my son’s sippy cup. I twisted off the top. I wanted to drink the water. It spilled out,” Emmerson said Saturday.
Emmerson said an officer threatened to arrest her after the water spilled, telling her she was “endangering the public.” She said there was no place to dump the water near the security area, and that she was worried when her son started wandering away from her.” - USAToday
