The stock's volatility on Friday shows why patience could be the best choice for investors interested in buying the AI company's shares.Palantir Technologies (PLTR -7.29%), a leading artificial intelligence (AI) data platform specialist, saw its shares fall about 7.5% on Friday. A Reuters report said an internal U.S. Army memo warned that a next-generation battlefield communications prototype -- built by Anduril, Palantir, and other partners -- had "fundamental security" issues. The disclosure sent Palantir ...