To whom it may concern;

Congratulations on your hiring for head of digital security for the inauguration of the mayor of New York City.

The mayor elect has drawn scrutiny from right wing agitators and there are creditable threats that some of the "angry twenty something tech bros" are going to attempt to disrupt the event or otherwise prank it.

As this event makes significant use of projectors and large digital displays, please advise the security (regular law enforcement officers that may not be familiar with the latest digital devices) for any objects that may be things that are likely inconspicuous but could be used to disrupt the event. Items that would be conspicuous in their use or have other legitimate use that the general public or credentialed reporters would be using should not be considered (e.g. laptops, cellphones).

These items will be added to the standard list of items prohibited at political events.

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This is a bit of creative writing, but you could imagine it being fairly close to what the person who is hired to preform this role is faced with.