Clear was made pointless almost immediately after launch by the introduction of TSA Pre, and ever since then has been desperately trying to find a reason to exist. They can’t actually replace the official security screening, because TSA runs that. Their weak value-add is to let you jump to the front of the line, which obviously has nothing to do with security. They might as well simplify matters by just offering to let people enrolled in TSA Pre pay another $150/year for a pass to jump the line, and thus avoid all the maintenance of those iris scanners or whatever they are.