Based on the tweet "what does one do with all the bitterness + anger of lack of job security, esp. when one has no obvious manoeuvres to remedy the situation", categorize the level of anger felt by the author. Select from the following: 0: no anger can be inferred, 1: low amount of anger can be inferred, 2: moderate amount of anger can be inferred, 3: high amount of anger can be inferred.