Getting a job takes longer than ever, as employers ask more of candidates. It has never been easy to land a job, but a rise in hiring has added a new twist: Employers are taking nearly twice as long to hire people as they did several years ago. Companies need an average of 23 days to screen and hire new employees, up from 13 days in 2010, says Andrew Chamberlain, chief economist at the jobs and recruiting site Glassdoor, based on a study of nearly 350,000 interview reviews by the site's users. Applicants run a gantlet of multiple interviews not...