American teenagers lie, steal and cheat more at "alarming rates," a study of nearly 30,000 high school students concluded Monday.

The attitudes and conduct of some 29,760 high school students across the United States "doesn't bode well for the future when these youngsters become the next generation's politicians and parents, cops and corporate executives, and journalists and generals," the non-profit Josephson Institute said.

In its 2008 Report Card on the Ethics of American Youth, the Los Angeles-based organization said the teenagers' responses to questions about lying, stealing and cheating "reveals entrenched habits of dishonesty for the workforce of the future."