March 26, 2009 4:51 pm Pledging Purity Increasing numbers of teens are pledging to abstain from pre-marital sex. US & World Videos 1:13 Evening forecast for May 19 2:28 Mystic Half Marathon and 10K kicked off Sunday 1:38 Forecast for Sunday, May 19 3:16 Pet of the Week: Layla 1:16 Firefighter falls through roof, 2 residents injured during Westbrook house fire