Editor's note: The following are questions received from viewers of "Mad Money," seen every day at 6 p.m. EDT on CNBC.Why are Viisage Technology (VISG) shares being discontinued at the end of the month? -- Millie from California Jim Cramer: The identity/security company is merging with one of its fellow competitors, Indentix ( IDNX), at the end of the month. Both stocks will be de-listed from the Nasdaq on Aug. 29, when the deal closes. The new company will trade under the symbol "ID" the following day, on the New York Stock Exchange. Want more Cramer? Check out Jim's rules and commandments for investing from his latest book by clicking here.