However, he says, "it's difficult to see how RFID tags on individual medical devices such as gowns, gloves, or scrub brushes can be accomplished at the current cost."

但是，他说，“这是很难看到RFID标签对个别医疗设备，如衣，手套，或磨砂刷可以在目前的成本。”

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Officials at the Glen Canyon National Recreation Area in Arizona started a Graffiti Removal and Intervention Team, and this year are recruiting volunteers to scrub off graffiti with water and wire brushes, according to the Glen Canyon website.

WSJ: Outbreak of Graffiti Defaces a Beauty Spot