Yes ,the consent isn't of a verbal nature ,once you passed the TSA checkpoint you gave them full consent to search yourself or your belongings completely before boarding an aircraft. They can even stop a person anywhere beyond the checkpoint and search them there if they deem it necessary.

TSA can and does remove prohibited or suspicious items from your checked baggage without your presence, but they are legally required to notify you after the fact. If a TSA agent opens your bag for a manual inspection, they must leave a standard "Notice of Baggage Inspection" card inside the suitcase to inform you that your property was searched. In 2026, if an item is confiscated because it is prohibited (such as a loose lithium battery, a prohibited lighter, or a tool over the allowed length), the card will often be marked to indicate what was taken. However, for items discovered at the security checkpoint (carry-on), they cannot take them without telling you; you are given the option to take the item back to your car, mail it to yourself, or "voluntarily abandon" it. While TSA has the authority to seize hazardous materials immediately for safety, the "card in the bag" is the primary way they communicate "silent" inspections to passengers.