U.S. President Donald Trump is set to sign an executive order that could pave the way for including cryptocurrencies in 401(k) retirement plans, potentially changing how Americans save and invest for the future. The White House Press Office confirmed to Cointelegraph on Thursday that the order will direct the U.S. Department of Labor to review current restrictions on alternative assets, such as digital currencies, private equity, and real estate, within defined-contribution retirement plans. According to a senior White House official, the order will instruct the labor secretary to clarify the department’s position on these alternative investments and issue guidance on…