The majority of people killed in traffic crashes in 2008 were

Vehicle occupants

Explanation:

According to the National Highway Traffic Safety Administration, vehicle occupants accounted for 72% of traffic fatalities in 2008, while motorcyclists accounted for 14% and another 14% involved pedestrians, pedalcyclists and other nonoccupants. Although traffic fatalities have decreased in recent years, there is much left to be done in order to ensure that driving becomes as safe as possible for most people.

in mcculloch v. maryland (1819) the supreme court ruled that congress had implied powers under the necessary and proper clause of article i, section 8 of the constitution to create the second bank of the united states and that the state of maryland lacked the power to tax the bank.

gibbons v. ogden, (1824), was a landmark decision in which the supreme court of the united states held that the power to regulate interstate commerce, granted to congress by the commerce clause of the united states constitution, encompassed the power to regulate navigation.