As an international traveler arriving at Dulles International Airport, I need to understand the customs and immigration process. Please describe the screening authority for international arrivals, the procedure for passengers with connecting flights, and list the available expedited customs screening programs.
Navigate to 'flydulles.com'. Click on the 'Travel Information' dropdown. Click on the 'Customs & Immigration' link. Extract information about the screening authority for international arrivals. Extract information about the procedure for international passengers with connecting flights. Extract the names of the expedited customs screening programs. Synthesize the extracted information into a concise answer.
State that all arriving international passengers (with exceptions for pre-cleared points) must be screened by U.S. Customs and Border Protection (CBP). State that passengers connecting to another flight will need to re-check their luggage and go through screening by the Transportation Security Administration (TSA). Identify 'Global Entry' and 'Mobile Passport' as the expedited customs screening programs.