“There are a range of powders that could be used to irritate or harm aircraft passengers and air crew if released during flight,” said Lisa Farbstein, a TSA spokeswoman. “TSA is working with international partners to align global aviation security standards.”
The agency adopted similar measures for domestic travel in April. For instance, passengers must place all personal electronic devices larger than a cellphone, such as e-readers and tablets, into a bin and remove dense food items that clutter bag interiors.
The focus on powders is part of a larger wave of security initiatives at airports around the world. Many carriers and countries have invested in new checkpoint technologies, amped up airport security, and introduced procedures that will better safeguard planes and passengers.
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