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Story summary
- Poland’s interior ministry deployed more than 20,000 police officers to schools after three stabbing attacks.
- A 15-year-old killed a caretaker and injured two teachers in Leszczydol-Nowiny on Oct 8.
- A 19-year-old wounded nine people at a vocational school in Ostroleka on Oct 7.
- Interior Minister Marcin Kierwinski warned of a copy-cat phenomenon and ordered daily school visits.
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