Right from the day it came into existence, Pakistan has strived towards being a security state rather than a welfare state. In the process of doing so, and at the same time with the intention of snatching Kashmir from India, they started harbouring terrorism. It is no longer hidden fact that Pakistan is the breeding ground of different terrorist outfits that have been causing mayhem all over the world. Even the 9/11 attacks could be traced back to Pakistan.
Pakistan has been claiming that they have put in a lot of effort and money in order to eradicate terrorism from the soil. However, the fact remains that they have only targeted dose terrorist organizations which have caused problems to their state. Apart from those, there are numerous other terrorist outfits, which are nurtured by the Pakistani state administration.
A couple of months back, US President Donald Trump threatened Pakistan of cutting all kinds of military support and financial assistance. It is due to the fact that the USA is sick and tired of Pakistan's double standard when it comes to countering terrorism. Pakistan's involvement in Mumbai attack is known to the global community. Despite providing innumerable pieces of evidence Pakistan hasn't punished the perpetrators. Therefore, the statement “Too Dangerous to Fail” is quite justified as far as Pakistan is concerned