LINQ: …Where(x => x.Contains(string that start with “foo”))

Question

Given a collection of the following class:

public class Post
{
    ...
    public IList Tags { get; set; }
}

Is there an easy

Answer 1

var tag = "foo";
var postsWithFooTag = 
  posts.Where( p=> p.Tags.Any( t => t.StartsWith(tag)));