there has been metal detectors in the capital for years - no one is allowed to come in from the outside without going thru them.
i believe the 'new' detectors are placed at the house chambers.
that being clarified ... this might also clear it up:
What Does the Speaker of the House Do?
By
Kirk Bailey
The Speaker of the United States House of Representatives, commonly referred to as the Speaker of the House (or simply,
House Speaker or the Speaker), serves as the presiding officer of the U.S. House of Representatives. The Speaker fulfills several roles, including representing constituents as a
Member of Congress, acting as administrative head of the House, and serving as leader of the majority political party in the House. If you’re wondering exactly
what does the Speaker of the House do, see the full description of this political representative’s full responsibilities below.
[...]
What does the speaker of the house do?
The Speaker of the House exercises duties as a Member of Congress, as presiding officer of the House of Representatives, and as leader of the majority political party in the House.
These responsibilities include voting on legislation,
administrative duties such as maintaining order within the House chamber, and other tasks such as appointing special committees.
Speaker of the House | dummies.com
seems that having the majority comes with some perks, 'eh?
kinda like how donny dismissed protocol re: security clearances for certain individuals ( like his panty waist son-in-law ) ... because well... he can.