NEW YORK (AP) — Stocks dropped again Tuesday as losses mounted for the world's largest technology companies. Retailers also fell, and energy companies plunged with oil prices as the market sank back into the red for the year.

Oil prices tumbled another 6.6 percent as Wall Street reacted to rising oil supplies and concerns that global economic growth will slow down, a worry that's intensified because of the trade tensions between the U.S. and China. U.S. crude has plunged 30 percent since early October.

Technology companies were hit after the Trump administration proposed new national security...