Water filters that are located in public locations such as schools, hospitals, office buildings, etc. are a break in the distribution system between the water treatment plant and a end user where an unauthorized person can tamper with and contaminate the water supply harming people drinking the water.
Is this a concern to you? There is current technology that places locks on water filters which will prevent vandalism, tampering or potential poisoning from happening.
Sign this petition if you want locks places on publicly located water filters.