Rebecca Walser, a wealth management advisor who specializes in financial planning for high net worth individuals, tells CNBC Make It that the rich use plenty of tricks to build wealth, but "the most common one is something that most regular Americans don't even know a thing about: Investing in permanent life insurance policies." Permanent life insurance policies, which Walser discusses in detail in her book, "Wealth Unbroken: Growing Wealth Uninterrupted By Market Crashes, Taxes, And Even...