New Delhi: After the US imposed a USD 100,000 annual fee for H-1B visas for highly skilled workers, the Congress on Saturday hit out at Prime Minister Narendra Modi, accusing him of being a "weak PM" whose preference for "strategic silence" and "loud optics" has become a liability for India. Congress president Mallikarjun Kharge also said that foreign policy is about safeguarding India's national interests and keeping "India First" and not holding "events".