LinqToSP crash with a user without owner privileges

Question

I have this piece of code:

        using (SPSite site = DetectContextSite())
        {
            using (SPWeb web = site.OpenWeb())
            {
                using (var dc = new DataContext(web.Url))
                {
                    var news = dc.GetList<ArticlePage>(this.ListName);
                    if (news != null)
                    {
                        DateTime now = DateTime.Now;
                        var result = news.ScopeToFolder(this.FolderName, true)
                                            .Where(n => n.PublishingStartDate <= now && n.PublishingEndDate >= now)
                                            .OrderByDescending(n => n.PublishingStartDate);
                        if (result != null)
                        {
                            if (result.Count() > this.NumberOfLatestNews)

that works when the logged user is an Owner but crash, during the Count method, when the user has only a visitor or member permission. The error is: Thread was being aborted