Three teenagers have invented a straw to detect date rape drugs

While most of us got through high school with passable grades and a few not-so-passable ones, three girls from Florida may have just invented a new tool to prevent date rape.

Victoria Roca, Susana Cappello, and Carolina Biagorri have invented a straw with two test strips that determine if a drink is drugged.

If it is, the strip turns blue.

Their prototype detects the most common date rape drugs, including Rohypnol and ketamine – and a patent is pending on their design.

Here's a video of the girls showing their invention:

RT: Inside Edition

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