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This afternoon's headlines: Union Pacific sees its 4Q earnings drop; Caterpillar reports increased 4Q earnings; Calif. power blackouts cause traffic tie-ups, disrupt shipping; and more.

Today's technology headlines: Five major railroads plan Web exchange; FCC clears WorldCom-Intermedia deal; buzzing about cell phone safety; and more.

A spokesman for United Parcel Service on Thursday categorically denied reports that it was on the verge of buying air cargo carrier Emery Worldwide from CNF Inc.

Overnite Transportation said Thursday it had strong growth in earnings for the fourth quarter and the year, reversing a steep loss from a year earlier.

In the news this morning: Knight Transportation reports higher 4Q earnings; Nasdaq delists PNV stock; study affirms causes, solutions for ergonomic injuries; and more.

The Federal Motor Carrier Safety Administration and the National Highway Traffic Safety Administration will team up to conduct a two-year study of the causes of crashes involving large trucks.

Despite the Federal Reserve’s recent interest-rate cut and increasingly aggressive sales promotions, manufacturers and dealers aren't likely to see any relief from a slumping truck market anytime soon.

Today's technology headlines: Satellite firm Globalstar halts payment on its debts; Cisco faces delay in shipping switches; satellite rivals TMI, Motient to merge; and more.

This afternoon's headlines: OPEC to cut production by 1.5 million barrels; trucking opinions vary on NY toll proposal; Williams Controls says its truck parts business 'sound' despite losses;

FedEx Corp. and the U.S. Postal Service agreed last week to a package of seven-year agreements under which FedEx will carry Priority, Express and first-class mail on its airplanes between the nation’s airports and will place up to 10,000 of its purple-orange-and-white drop boxes at post offices around the nation.