Can cookies be deleted?

To this day, there is little public awareness of Adobe/Macromedia's hidden, proprietary-cookie LSOs, and no widespread, well-known utility-suite, anti-spyware, or anti-adware programs that address them. Users who delete traditional cookies with such programs may find those cookies resurrected because of Adobe/Macromedia's LSOs: Tool Can Resurrect Deleted Cookies (Out-Law.com). Since LSOs, unlike traditional cookies, have no expiration dates, the information resurrected in those cookies may persist indefinitely.