Table: Room for Improvement

Six months after September 11, U.S. transportation systems remain vulnerable. While more needs to be done, a few protective steps have been taken:

AVIATION

Background checks for airport workers; mandatory baggage and cargo screening

RAIL

No action

TRUCKING

Mandatory background checks for haulers of hazardous materials

MARITIME

$93 million allocated for port security and more harbor patrols. Senate has asked for $4 billion more.

Data: BusinessWeek

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