A compromise spending bill presented Monday by the U.S. House Appropriations Committee could increase visas for temporary foreign workers allowed in the country by up to 70,000, potentially alleviating what many tourism industry employers in Maine say is a widespread shortage of seasonal employees. Congress might approve allowing between 60,000 and 70,000 more H-2B workers into the U.S. during the remainder of the 2017 federal fiscal year, which ends in September, in addition to the 66,000 visa cap, the limit for which was reached in March.